Home / 85,344,000.40-128,016,000.60-21,518,592.40

Finding the Fourth Proportional to 85,344,000.40, 128,016,000.60 and 21,518,592.40

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Solution

The fourth proportional to 85,344,000.40, 128,016,000.60 and 21,518,592.40 is: 32,277,888.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,344,000.40 : 128,016,000.60 = 21,518,592.40 : x
  2. Step 2: Convert to fraction form
    85,344,000.40/128,016,000.60 = 21,518,592.40/x
  3. Step 3: Cross multiply
    85,344,000.40x = 128,016,000.60 × 21,518,592.40
  4. Step 4: Simplify right side
    85,344,000.40x = 2,754,724,137,589,555
  5. Step 5: Solve for x
    x = 2,754,724,137,589,555/85,344,000.40
  6. Step 6: Final answer
    x = 32,277,888.60

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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.