Home / 215,817,455.70-323,729,136.81-70,251,633.18

Finding the Fourth Proportional to 215,817,455.70, 323,729,136.81 and 70,251,633.18

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Solution

The fourth proportional to 215,817,455.70, 323,729,136.81 and 70,251,633.18 is: 105,378,411.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,817,455.70 : 323,729,136.81 = 70,251,633.18 : x
  2. Step 2: Convert to fraction form
    215,817,455.70/323,729,136.81 = 70,251,633.18/x
  3. Step 3: Cross multiply
    215,817,455.70x = 323,729,136.81 × 70,251,633.18
  4. Step 4: Simplify right side
    215,817,455.70x = 22,742,500,568,854,156
  5. Step 5: Solve for x
    x = 22,742,500,568,854,156/215,817,455.70
  6. Step 6: Final answer
    x = 105,378,411.10

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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.