Home / 718,928,225.76-1,078,423,109.78-282,323,380.71

Finding the Fourth Proportional to 718,928,225.76, 1,078,423,109.78 and 282,323,380.71

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Solution

The fourth proportional to 718,928,225.76, 1,078,423,109.78 and 282,323,380.71 is: 423,497,154.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,928,225.76 : 1,078,423,109.78 = 282,323,380.71 : x
  2. Step 2: Convert to fraction form
    718,928,225.76/1,078,423,109.78 = 282,323,380.71/x
  3. Step 3: Cross multiply
    718,928,225.76x = 1,078,423,109.78 × 282,323,380.71
  4. Step 4: Simplify right side
    718,928,225.76x = 304,464,058,187,469,440
  5. Step 5: Solve for x
    x = 304,464,058,187,469,440/718,928,225.76
  6. Step 6: Final answer
    x = 423,497,154.90

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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.