Home / 290,350,459.52-435,610,718.88-85,883,979.52

Finding the Fourth Proportional to 290,350,459.52, 435,610,718.88 and 85,883,979.52

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Solution

The fourth proportional to 290,350,459.52, 435,610,718.88 and 85,883,979.52 is: 128,851,120.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,350,459.52 : 435,610,718.88 = 85,883,979.52 : x
  2. Step 2: Convert to fraction form
    290,350,459.52/435,610,718.88 = 85,883,979.52/x
  3. Step 3: Cross multiply
    290,350,459.52x = 435,610,718.88 × 85,883,979.52
  4. Step 4: Simplify right side
    290,350,459.52x = 37,411,982,058,982,392
  5. Step 5: Solve for x
    x = 37,411,982,058,982,392/290,350,459.52
  6. Step 6: Final answer
    x = 128,851,120.54

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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.