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Finding the Fourth Proportional to 660,188,892.70, 990,283,339.05 and 466,478,648.20

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Solution

The fourth proportional to 660,188,892.70, 990,283,339.05 and 466,478,648.20 is: 699,717,972.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,188,892.70 : 990,283,339.05 = 466,478,648.20 : x
  2. Step 2: Convert to fraction form
    660,188,892.70/990,283,339.05 = 466,478,648.20/x
  3. Step 3: Cross multiply
    660,188,892.70x = 990,283,339.05 × 466,478,648.20
  4. Step 4: Simplify right side
    660,188,892.70x = 461,946,033,335,026,240
  5. Step 5: Solve for x
    x = 461,946,033,335,026,240/660,188,892.70
  6. Step 6: Final answer
    x = 699,717,972.30

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1.5x scale

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.