Home / 638,353,500.80-957,530,251.20-153,679,308.80

Finding the Fourth Proportional to 638,353,500.80, 957,530,251.20 and 153,679,308.80

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Solution

The fourth proportional to 638,353,500.80, 957,530,251.20 and 153,679,308.80 is: 230,518,963.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,353,500.80 : 957,530,251.20 = 153,679,308.80 : x
  2. Step 2: Convert to fraction form
    638,353,500.80/957,530,251.20 = 153,679,308.80/x
  3. Step 3: Cross multiply
    638,353,500.80x = 957,530,251.20 × 153,679,308.80
  4. Step 4: Simplify right side
    638,353,500.80x = 147,152,587,159,506,400
  5. Step 5: Solve for x
    x = 147,152,587,159,506,400/638,353,500.80
  6. Step 6: Final answer
    x = 230,518,963.20

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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.