Home / 338,928,008.50-508,588,154.60-142,173,800.96

Finding the Fourth Proportional to 338,928,008.50, 508,588,154.60 and 142,173,800.96

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Solution

The fourth proportional to 338,928,008.50, 508,588,154.60 and 142,173,800.96 is: 213,342,979.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,928,008.50 : 508,588,154.60 = 142,173,800.96 : x
  2. Step 2: Convert to fraction form
    338,928,008.50/508,588,154.60 = 142,173,800.96/x
  3. Step 3: Cross multiply
    338,928,008.50x = 508,588,154.60 × 142,173,800.96
  4. Step 4: Simplify right side
    338,928,008.50x = 72,307,911,059,460,304
  5. Step 5: Solve for x
    x = 72,307,911,059,460,304/338,928,008.50
  6. Step 6: Final answer
    x = 213,342,979.18

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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.