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Finding the Fourth Proportional to 748,869,891.90, 1,123,304,837.85 and 340,723,203.90

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Solution

The fourth proportional to 748,869,891.90, 1,123,304,837.85 and 340,723,203.90 is: 511,084,805.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,869,891.90 : 1,123,304,837.85 = 340,723,203.90 : x
  2. Step 2: Convert to fraction form
    748,869,891.90/1,123,304,837.85 = 340,723,203.90/x
  3. Step 3: Cross multiply
    748,869,891.90x = 1,123,304,837.85 × 340,723,203.90
  4. Step 4: Simplify right side
    748,869,891.90x = 382,736,023,308,621,952
  5. Step 5: Solve for x
    x = 382,736,023,308,621,952/748,869,891.90
  6. Step 6: Final answer
    x = 511,084,805.85

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Double scale
Find fourth proportional to 748,869,892.90, 1,123,304,839.35 and 340,723,204.90
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.