Home / 645,294,406.80-967,941,610.20-531,920,326.80

Finding the Fourth Proportional to 645,294,406.80, 967,941,610.20 and 531,920,326.80

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Solution

The fourth proportional to 645,294,406.80, 967,941,610.20 and 531,920,326.80 is: 797,880,490.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,294,406.80 : 967,941,610.20 = 531,920,326.80 : x
  2. Step 2: Convert to fraction form
    645,294,406.80/967,941,610.20 = 531,920,326.80/x
  3. Step 3: Cross multiply
    645,294,406.80x = 967,941,610.20 × 531,920,326.80
  4. Step 4: Simplify right side
    645,294,406.80x = 514,867,817,620,902,272
  5. Step 5: Solve for x
    x = 514,867,817,620,902,272/645,294,406.80
  6. Step 6: Final answer
    x = 797,880,490.20

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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.