Home / 418,232,001.40-627,348,002.10-145,512,129.40

Finding the Fourth Proportional to 418,232,001.40, 627,348,002.10 and 145,512,129.40

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Solution

The fourth proportional to 418,232,001.40, 627,348,002.10 and 145,512,129.40 is: 218,268,194.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,232,001.40 : 627,348,002.10 = 145,512,129.40 : x
  2. Step 2: Convert to fraction form
    418,232,001.40/627,348,002.10 = 145,512,129.40/x
  3. Step 3: Cross multiply
    418,232,001.40x = 627,348,002.10 × 145,512,129.40
  4. Step 4: Simplify right side
    418,232,001.40x = 91,286,743,660,406,672
  5. Step 5: Solve for x
    x = 91,286,743,660,406,672/418,232,001.40
  6. Step 6: Final answer
    x = 218,268,194.10

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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.