Home / 645,293,430.80-967,940,146.20-531,919,350.80

Finding the Fourth Proportional to 645,293,430.80, 967,940,146.20 and 531,919,350.80

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Solution

The fourth proportional to 645,293,430.80, 967,940,146.20 and 531,919,350.80 is: 797,879,026.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,293,430.80 : 967,940,146.20 = 531,919,350.80 : x
  2. Step 2: Convert to fraction form
    645,293,430.80/967,940,146.20 = 531,919,350.80/x
  3. Step 3: Cross multiply
    645,293,430.80x = 967,940,146.20 × 531,919,350.80
  4. Step 4: Simplify right side
    645,293,430.80x = 514,866,094,179,961,152
  5. Step 5: Solve for x
    x = 514,866,094,179,961,152/645,293,430.80
  6. Step 6: Final answer
    x = 797,879,026.20

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Double scale
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Similar ratio
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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.