Home / 435,496,979.70-653,245,469.55-391,155,117.30

Finding the Fourth Proportional to 435,496,979.70, 653,245,469.55 and 391,155,117.30

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Solution

The fourth proportional to 435,496,979.70, 653,245,469.55 and 391,155,117.30 is: 586,732,675.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,496,979.70 : 653,245,469.55 = 391,155,117.30 : x
  2. Step 2: Convert to fraction form
    435,496,979.70/653,245,469.55 = 391,155,117.30/x
  3. Step 3: Cross multiply
    435,496,979.70x = 653,245,469.55 × 391,155,117.30
  4. Step 4: Simplify right side
    435,496,979.70x = 255,520,308,267,523,808
  5. Step 5: Solve for x
    x = 255,520,308,267,523,808/435,496,979.70
  6. Step 6: Final answer
    x = 586,732,675.95

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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.