Home / 646,924,368.60-969,725,204.10-318,895,363.80

Finding the Fourth Proportional to 646,924,368.60, 969,725,204.10 and 318,895,363.80

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Solution

The fourth proportional to 646,924,368.60, 969,725,204.10 and 318,895,363.80 is: 478,017,039.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,924,368.60 : 969,725,204.10 = 318,895,363.80 : x
  2. Step 2: Convert to fraction form
    646,924,368.60/969,725,204.10 = 318,895,363.80/x
  3. Step 3: Cross multiply
    646,924,368.60x = 969,725,204.10 × 318,895,363.80
  4. Step 4: Simplify right side
    646,924,368.60x = 309,240,871,747,498,752
  5. Step 5: Solve for x
    x = 309,240,871,747,498,752/646,924,368.60
  6. Step 6: Final answer
    x = 478,017,039.95

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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.