Home / 100,315,494.32-138,436,899-56,272,256.24

Finding the Fourth Proportional to 100,315,494.32, 138,436,899 and 56,272,256.24

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Solution

The fourth proportional to 100,315,494.32, 138,436,899 and 56,272,256.24 is: 77,656,564.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,315,494.32 : 138,436,899 = 56,272,256.24 : x
  2. Step 2: Convert to fraction form
    100,315,494.32/138,436,899 = 56,272,256.24/x
  3. Step 3: Cross multiply
    100,315,494.32x = 138,436,899 × 56,272,256.24
  4. Step 4: Simplify right side
    100,315,494.32x = 7,790,156,653,599,000
  5. Step 5: Solve for x
    x = 7,790,156,653,599,000/100,315,494.32
  6. Step 6: Final answer
    x = 77,656,564.49

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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.