Home / 145,837,928.70-218,721,901.05-84,293,999.10

Finding the Fourth Proportional to 145,837,928.70, 218,721,901.05 and 84,293,999.10

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Solution

The fourth proportional to 145,837,928.70, 218,721,901.05 and 84,293,999.10 is: 126,420,773.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,837,928.70 : 218,721,901.05 = 84,293,999.10 : x
  2. Step 2: Convert to fraction form
    145,837,928.70/218,721,901.05 = 84,293,999.10/x
  3. Step 3: Cross multiply
    145,837,928.70x = 218,721,901.05 × 84,293,999.10
  4. Step 4: Simplify right side
    145,837,928.70x = 18,436,943,730,258,988
  5. Step 5: Solve for x
    x = 18,436,943,730,258,988/145,837,928.70
  6. Step 6: Final answer
    x = 126,420,773.35

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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.