Home / 85,373,947.04-128,041,754.18-39,271,538.70

Finding the Fourth Proportional to 85,373,947.04, 128,041,754.18 and 39,271,538.70

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Solution

The fourth proportional to 85,373,947.04, 128,041,754.18 and 39,271,538.70 is: 58,898,491.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,373,947.04 : 128,041,754.18 = 39,271,538.70 : x
  2. Step 2: Convert to fraction form
    85,373,947.04/128,041,754.18 = 39,271,538.70/x
  3. Step 3: Cross multiply
    85,373,947.04x = 128,041,754.18 × 39,271,538.70
  4. Step 4: Simplify right side
    85,373,947.04x = 5,028,396,704,299,399
  5. Step 5: Solve for x
    x = 5,028,396,704,299,399/85,373,947.04
  6. Step 6: Final answer
    x = 58,898,491.62

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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.