Home / 38,345,800,554.55-52,912,621,145.40-21,196,337,068.72

Finding the Fourth Proportional to 38,345,800,554.55, 52,912,621,145.40 and 21,196,337,068.72

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Solution

The fourth proportional to 38,345,800,554.55, 52,912,621,145.40 and 21,196,337,068.72 is: 29,248,411,475.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,345,800,554.55 : 52,912,621,145.40 = 21,196,337,068.72 : x
  2. Step 2: Convert to fraction form
    38,345,800,554.55/52,912,621,145.40 = 21,196,337,068.72/x
  3. Step 3: Cross multiply
    38,345,800,554.55x = 52,912,621,145.40 × 21,196,337,068.72
  4. Step 4: Simplify right side
    38,345,800,554.55x = 1,121,553,752,987,379,826,688
  5. Step 5: Solve for x
    x = 1,121,553,752,987,379,826,688/38,345,800,554.55
  6. Step 6: Final answer
    x = 29,248,411,475.77

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Double scale
Find fourth proportional to 38,345,800,555.55, 52,912,621,146.78 and 21,196,337,069.72
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.