Home / 100,315,493.32-138,436,897.62-56,272,255.24

Finding the Fourth Proportional to 100,315,493.32, 138,436,897.62 and 56,272,255.24

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Solution

The fourth proportional to 100,315,493.32, 138,436,897.62 and 56,272,255.24 is: 77,656,563.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,315,493.32 : 138,436,897.62 = 56,272,255.24 : x
  2. Step 2: Convert to fraction form
    100,315,493.32/138,436,897.62 = 56,272,255.24/x
  3. Step 3: Cross multiply
    100,315,493.32x = 138,436,897.62 × 56,272,255.24
  4. Step 4: Simplify right side
    100,315,493.32x = 7,790,156,437,506,389
  5. Step 5: Solve for x
    x = 7,790,156,437,506,389/100,315,493.32
  6. Step 6: Final answer
    x = 77,656,563.11

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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.