Home / 748,964,411.40-1,123,446,617.10-519,192,942.60

Finding the Fourth Proportional to 748,964,411.40, 1,123,446,617.10 and 519,192,942.60

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Solution

The fourth proportional to 748,964,411.40, 1,123,446,617.10 and 519,192,942.60 is: 778,789,413.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,964,411.40 : 1,123,446,617.10 = 519,192,942.60 : x
  2. Step 2: Convert to fraction form
    748,964,411.40/1,123,446,617.10 = 519,192,942.60/x
  3. Step 3: Cross multiply
    748,964,411.40x = 1,123,446,617.10 × 519,192,942.60
  4. Step 4: Simplify right side
    748,964,411.40x = 583,285,554,986,164,480
  5. Step 5: Solve for x
    x = 583,285,554,986,164,480/748,964,411.40
  6. Step 6: Final answer
    x = 778,789,413.90

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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.