Home / 21,099,953,279.85-31,643,210,290.28-6,931,630,266.99

Finding the Fourth Proportional to 21,099,953,279.85, 31,643,210,290.28 and 6,931,630,266.99

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Solution

The fourth proportional to 21,099,953,279.85, 31,643,210,290.28 and 6,931,630,266.99 is: 10,395,237,908.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,099,953,279.85 : 31,643,210,290.28 = 6,931,630,266.99 : x
  2. Step 2: Convert to fraction form
    21,099,953,279.85/31,643,210,290.28 = 6,931,630,266.99/x
  3. Step 3: Cross multiply
    21,099,953,279.85x = 31,643,210,290.28 × 6,931,630,266.99
  4. Step 4: Simplify right side
    21,099,953,279.85x = 219,339,034,192,855,072,768
  5. Step 5: Solve for x
    x = 219,339,034,192,855,072,768/21,099,953,279.85
  6. Step 6: Final answer
    x = 10,395,237,908.05

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.