Home / 748,872,002.40-1,123,308,003.60-340,725,314.40

Finding the Fourth Proportional to 748,872,002.40, 1,123,308,003.60 and 340,725,314.40

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Solution

The fourth proportional to 748,872,002.40, 1,123,308,003.60 and 340,725,314.40 is: 511,087,971.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,872,002.40 : 1,123,308,003.60 = 340,725,314.40 : x
  2. Step 2: Convert to fraction form
    748,872,002.40/1,123,308,003.60 = 340,725,314.40/x
  3. Step 3: Cross multiply
    748,872,002.40x = 1,123,308,003.60 × 340,725,314.40
  4. Step 4: Simplify right side
    748,872,002.40x = 382,739,472,694,646,272
  5. Step 5: Solve for x
    x = 382,739,472,694,646,272/748,872,002.40
  6. Step 6: Final answer
    x = 511,087,971.60

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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.