Home / 149,999,909.08-207,032,247.12-91,281,491.16

Finding the Fourth Proportional to 149,999,909.08, 207,032,247.12 and 91,281,491.16

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Solution

The fourth proportional to 149,999,909.08, 207,032,247.12 and 91,281,491.16 is: 125,988,157.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,999,909.08 : 207,032,247.12 = 91,281,491.16 : x
  2. Step 2: Convert to fraction form
    149,999,909.08/207,032,247.12 = 91,281,491.16/x
  3. Step 3: Cross multiply
    149,999,909.08x = 207,032,247.12 × 91,281,491.16
  4. Step 4: Simplify right side
    149,999,909.08x = 18,898,212,235,319,216
  5. Step 5: Solve for x
    x = 18,898,212,235,319,216/149,999,909.08
  6. Step 6: Final answer
    x = 125,988,157.93

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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.