Home / 129,288,451.28-178,421,848.61-70,554,900.92

Finding the Fourth Proportional to 129,288,451.28, 178,421,848.61 and 70,554,900.92

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Solution

The fourth proportional to 129,288,451.28, 178,421,848.61 and 70,554,900.92 is: 97,367,829.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,288,451.28 : 178,421,848.61 = 70,554,900.92 : x
  2. Step 2: Convert to fraction form
    129,288,451.28/178,421,848.61 = 70,554,900.92/x
  3. Step 3: Cross multiply
    129,288,451.28x = 178,421,848.61 × 70,554,900.92
  4. Step 4: Simplify right side
    129,288,451.28x = 12,588,535,849,396,906
  5. Step 5: Solve for x
    x = 12,588,535,849,396,906/129,288,451.28
  6. Step 6: Final answer
    x = 97,367,829.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.