Home / 378,119,143.40-567,178,715.10-313,549,061.90

Finding the Fourth Proportional to 378,119,143.40, 567,178,715.10 and 313,549,061.90

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Solution

The fourth proportional to 378,119,143.40, 567,178,715.10 and 313,549,061.90 is: 470,323,592.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,119,143.40 : 567,178,715.10 = 313,549,061.90 : x
  2. Step 2: Convert to fraction form
    378,119,143.40/567,178,715.10 = 313,549,061.90/x
  3. Step 3: Cross multiply
    378,119,143.40x = 567,178,715.10 × 313,549,061.90
  4. Step 4: Simplify right side
    378,119,143.40x = 177,838,354,049,252,352
  5. Step 5: Solve for x
    x = 177,838,354,049,252,352/378,119,143.40
  6. Step 6: Final answer
    x = 470,323,592.85

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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.