Home / 386,477,072.70-579,267,711.45-156,332,355.90

Finding the Fourth Proportional to 386,477,072.70, 579,267,711.45 and 156,332,355.90

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Solution

The fourth proportional to 386,477,072.70, 579,267,711.45 and 156,332,355.90 is: 234,317,356.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,477,072.70 : 579,267,711.45 = 156,332,355.90 : x
  2. Step 2: Convert to fraction form
    386,477,072.70/579,267,711.45 = 156,332,355.90/x
  3. Step 3: Cross multiply
    386,477,072.70x = 579,267,711.45 × 156,332,355.90
  4. Step 4: Simplify right side
    386,477,072.70x = 90,558,286,027,779,920
  5. Step 5: Solve for x
    x = 90,558,286,027,779,920/386,477,072.70
  6. Step 6: Final answer
    x = 234,317,356.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.