Home / 66,921,215.80-100,381,823.70-59,614,886.20

Finding the Fourth Proportional to 66,921,215.80, 100,381,823.70 and 59,614,886.20

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Solution

The fourth proportional to 66,921,215.80, 100,381,823.70 and 59,614,886.20 is: 89,422,329.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,921,215.80 : 100,381,823.70 = 59,614,886.20 : x
  2. Step 2: Convert to fraction form
    66,921,215.80/100,381,823.70 = 59,614,886.20/x
  3. Step 3: Cross multiply
    66,921,215.80x = 100,381,823.70 × 59,614,886.20
  4. Step 4: Simplify right side
    66,921,215.80x = 5,984,250,996,423,963
  5. Step 5: Solve for x
    x = 5,984,250,996,423,963/66,921,215.80
  6. Step 6: Final answer
    x = 89,422,329.30

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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.