Home / 144,598,604.13-199,545,442.61-78,518,565.90

Finding the Fourth Proportional to 144,598,604.13, 199,545,442.61 and 78,518,565.90

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Solution

The fourth proportional to 144,598,604.13, 199,545,442.61 and 78,518,565.90 is: 108,355,278.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,598,604.13 : 199,545,442.61 = 78,518,565.90 : x
  2. Step 2: Convert to fraction form
    144,598,604.13/199,545,442.61 = 78,518,565.90/x
  3. Step 3: Cross multiply
    144,598,604.13x = 199,545,442.61 × 78,518,565.90
  4. Step 4: Simplify right side
    144,598,604.13x = 15,668,021,985,225,360
  5. Step 5: Solve for x
    x = 15,668,021,985,225,360/144,598,604.13
  6. Step 6: Final answer
    x = 108,355,278.25

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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.