Home / 31,070,454.72-42,859,668.96-19,447,840.32

Finding the Fourth Proportional to 31,070,454.72, 42,859,668.96 and 19,447,840.32

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Solution

The fourth proportional to 31,070,454.72, 42,859,668.96 and 19,447,840.32 is: 26,827,029.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,070,454.72 : 42,859,668.96 = 19,447,840.32 : x
  2. Step 2: Convert to fraction form
    31,070,454.72/42,859,668.96 = 19,447,840.32/x
  3. Step 3: Cross multiply
    31,070,454.72x = 42,859,668.96 × 19,447,840.32
  4. Step 4: Simplify right side
    31,070,454.72x = 833,527,998,102,140.50
  5. Step 5: Solve for x
    x = 833,527,998,102,140.50/31,070,454.72
  6. Step 6: Final answer
    x = 26,827,029.27

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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.