Home / 219,390,727.57-328,990,420.13-82,980,451.69

Finding the Fourth Proportional to 219,390,727.57, 328,990,420.13 and 82,980,451.69

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Solution

The fourth proportional to 219,390,727.57, 328,990,420.13 and 82,980,451.69 is: 124,434,491.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,390,727.57 : 328,990,420.13 = 82,980,451.69 : x
  2. Step 2: Convert to fraction form
    219,390,727.57/328,990,420.13 = 82,980,451.69/x
  3. Step 3: Cross multiply
    219,390,727.57x = 328,990,420.13 × 82,980,451.69
  4. Step 4: Simplify right side
    219,390,727.57x = 27,299,773,662,832,892
  5. Step 5: Solve for x
    x = 27,299,773,662,832,892/219,390,727.57
  6. Step 6: Final answer
    x = 124,434,491.67

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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.