Home / 638,353,500.30-957,530,250.45-153,679,308.30

Finding the Fourth Proportional to 638,353,500.30, 957,530,250.45 and 153,679,308.30

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Solution

The fourth proportional to 638,353,500.30, 957,530,250.45 and 153,679,308.30 is: 230,518,962.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,353,500.30 : 957,530,250.45 = 153,679,308.30 : x
  2. Step 2: Convert to fraction form
    638,353,500.30/957,530,250.45 = 153,679,308.30/x
  3. Step 3: Cross multiply
    638,353,500.30x = 957,530,250.45 × 153,679,308.30
  4. Step 4: Simplify right side
    638,353,500.30x = 147,152,586,565,481,792
  5. Step 5: Solve for x
    x = 147,152,586,565,481,792/638,353,500.30
  6. Step 6: Final answer
    x = 230,518,962.45

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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.