Home / 85,536,000.90-128,304,001.35-21,710,592.90

Finding the Fourth Proportional to 85,536,000.90, 128,304,001.35 and 21,710,592.90

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Solution

The fourth proportional to 85,536,000.90, 128,304,001.35 and 21,710,592.90 is: 32,565,889.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,536,000.90 : 128,304,001.35 = 21,710,592.90 : x
  2. Step 2: Convert to fraction form
    85,536,000.90/128,304,001.35 = 21,710,592.90/x
  3. Step 3: Cross multiply
    85,536,000.90x = 128,304,001.35 × 21,710,592.90
  4. Step 4: Simplify right side
    85,536,000.90x = 2,785,555,940,750,900
  5. Step 5: Solve for x
    x = 2,785,555,940,750,900/85,536,000.90
  6. Step 6: Final answer
    x = 32,565,889.35

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Double scale
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Similar ratio
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1.5x scale

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.