Home / 145,408,001.40-218,112,002.10-43,187,815.80

Finding the Fourth Proportional to 145,408,001.40, 218,112,002.10 and 43,187,815.80

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Solution

The fourth proportional to 145,408,001.40, 218,112,002.10 and 43,187,815.80 is: 64,781,723.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,408,001.40 : 218,112,002.10 = 43,187,815.80 : x
  2. Step 2: Convert to fraction form
    145,408,001.40/218,112,002.10 = 43,187,815.80/x
  3. Step 3: Cross multiply
    145,408,001.40x = 218,112,002.10 × 43,187,815.80
  4. Step 4: Simplify right side
    145,408,001.40x = 9,419,780,970,464,012
  5. Step 5: Solve for x
    x = 9,419,780,970,464,012/145,408,001.40
  6. Step 6: Final answer
    x = 64,781,723.70

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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.