Home / 100,315,497.32-138,436,903.14-56,272,259.24

Finding the Fourth Proportional to 100,315,497.32, 138,436,903.14 and 56,272,259.24

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Solution

The fourth proportional to 100,315,497.32, 138,436,903.14 and 56,272,259.24 is: 77,656,568.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,315,497.32 : 138,436,903.14 = 56,272,259.24 : x
  2. Step 2: Convert to fraction form
    100,315,497.32/138,436,903.14 = 56,272,259.24/x
  3. Step 3: Cross multiply
    100,315,497.32x = 138,436,903.14 × 56,272,259.24
  4. Step 4: Simplify right side
    100,315,497.32x = 7,790,157,301,876,849
  5. Step 5: Solve for x
    x = 7,790,157,301,876,849/100,315,497.32
  6. Step 6: Final answer
    x = 77,656,568.63

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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.