Home / 645,294,400.80-967,941,601.20-531,920,320.80

Finding the Fourth Proportional to 645,294,400.80, 967,941,601.20 and 531,920,320.80

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Solution

The fourth proportional to 645,294,400.80, 967,941,601.20 and 531,920,320.80 is: 797,880,481.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,294,400.80 : 967,941,601.20 = 531,920,320.80 : x
  2. Step 2: Convert to fraction form
    645,294,400.80/967,941,601.20 = 531,920,320.80/x
  3. Step 3: Cross multiply
    645,294,400.80x = 967,941,601.20 × 531,920,320.80
  4. Step 4: Simplify right side
    645,294,400.80x = 514,867,807,025,969,728
  5. Step 5: Solve for x
    x = 514,867,807,025,969,728/645,294,400.80
  6. Step 6: Final answer
    x = 797,880,481.20

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Double scale
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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.