Home / 509,292,173.55-763,861,508.85-326,338,143.15

Finding the Fourth Proportional to 509,292,173.55, 763,861,508.85 and 326,338,143.15

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Solution

The fourth proportional to 509,292,173.55, 763,861,508.85 and 326,338,143.15 is: 489,458,034.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,292,173.55 : 763,861,508.85 = 326,338,143.15 : x
  2. Step 2: Convert to fraction form
    509,292,173.55/763,861,508.85 = 326,338,143.15/x
  3. Step 3: Cross multiply
    509,292,173.55x = 763,861,508.85 × 326,338,143.15
  4. Step 4: Simplify right side
    509,292,173.55x = 249,277,146,421,866,272
  5. Step 5: Solve for x
    x = 249,277,146,421,866,272/509,292,173.55
  6. Step 6: Final answer
    x = 489,458,034.83

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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.