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Finding the Fourth Proportional to 890,379,023.70, 1,335,568,535.55 and 657,926,730.30

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Solution

The fourth proportional to 890,379,023.70, 1,335,568,535.55 and 657,926,730.30 is: 986,890,095.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,379,023.70 : 1,335,568,535.55 = 657,926,730.30 : x
  2. Step 2: Convert to fraction form
    890,379,023.70/1,335,568,535.55 = 657,926,730.30/x
  3. Step 3: Cross multiply
    890,379,023.70x = 1,335,568,535.55 × 657,926,730.30
  4. Step 4: Simplify right side
    890,379,023.70x = 878,706,239,685,970,688
  5. Step 5: Solve for x
    x = 878,706,239,685,970,688/890,379,023.70
  6. Step 6: Final answer
    x = 986,890,095.45

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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.