Home / 426,752,856.10-640,607,581.05-330,136,882.30

Finding the Fourth Proportional to 426,752,856.10, 640,607,581.05 and 330,136,882.30

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Solution

The fourth proportional to 426,752,856.10, 640,607,581.05 and 330,136,882.30 is: 495,575,334.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,752,856.10 : 640,607,581.05 = 330,136,882.30 : x
  2. Step 2: Convert to fraction form
    426,752,856.10/640,607,581.05 = 330,136,882.30/x
  3. Step 3: Cross multiply
    426,752,856.10x = 640,607,581.05 × 330,136,882.30
  4. Step 4: Simplify right side
    426,752,856.10x = 211,488,189,585,591,552
  5. Step 5: Solve for x
    x = 211,488,189,585,591,552/426,752,856.10
  6. Step 6: Final answer
    x = 495,575,334.91

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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.