Home / 431,137,368.30-646,706,052.45-158,472,705.90

Finding the Fourth Proportional to 431,137,368.30, 646,706,052.45 and 158,472,705.90

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Solution

The fourth proportional to 431,137,368.30, 646,706,052.45 and 158,472,705.90 is: 237,709,058.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,137,368.30 : 646,706,052.45 = 158,472,705.90 : x
  2. Step 2: Convert to fraction form
    431,137,368.30/646,706,052.45 = 158,472,705.90/x
  3. Step 3: Cross multiply
    431,137,368.30x = 646,706,052.45 × 158,472,705.90
  4. Step 4: Simplify right side
    431,137,368.30x = 102,485,258,053,658,832
  5. Step 5: Solve for x
    x = 102,485,258,053,658,832/431,137,368.30
  6. Step 6: Final answer
    x = 237,709,058.85

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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.