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Finding the Fourth Proportional to 402,841,773.60, 604,262,660.40 and 130,408,058.40

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Solution

The fourth proportional to 402,841,773.60, 604,262,660.40 and 130,408,058.40 is: 195,612,087.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,841,773.60 : 604,262,660.40 = 130,408,058.40 : x
  2. Step 2: Convert to fraction form
    402,841,773.60/604,262,660.40 = 130,408,058.40/x
  3. Step 3: Cross multiply
    402,841,773.60x = 604,262,660.40 × 130,408,058.40
  4. Step 4: Simplify right side
    402,841,773.60x = 78,800,720,306,382,560
  5. Step 5: Solve for x
    x = 78,800,720,306,382,560/402,841,773.60
  6. Step 6: Final answer
    x = 195,612,087.60

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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.