Home / 215,854,009.28-323,708,509.40-70,253,327.90

Finding the Fourth Proportional to 215,854,009.28, 323,708,509.40 and 70,253,327.90

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Solution

The fourth proportional to 215,854,009.28, 323,708,509.40 and 70,253,327.90 is: 105,356,394.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,854,009.28 : 323,708,509.40 = 70,253,327.90 : x
  2. Step 2: Convert to fraction form
    215,854,009.28/323,708,509.40 = 70,253,327.90/x
  3. Step 3: Cross multiply
    215,854,009.28x = 323,708,509.40 × 70,253,327.90
  4. Step 4: Simplify right side
    215,854,009.28x = 22,741,600,052,928,620
  5. Step 5: Solve for x
    x = 22,741,600,052,928,620/215,854,009.28
  6. Step 6: Final answer
    x = 105,356,394.02

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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.