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Finding the Fourth Proportional to 665,788,293.36, 994,599,903.96 and 479,969,946.90

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Solution

The fourth proportional to 665,788,293.36, 994,599,903.96 and 479,969,946.90 is: 717,011,800.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,788,293.36 : 994,599,903.96 = 479,969,946.90 : x
  2. Step 2: Convert to fraction form
    665,788,293.36/994,599,903.96 = 479,969,946.90/x
  3. Step 3: Cross multiply
    665,788,293.36x = 994,599,903.96 × 479,969,946.90
  4. Step 4: Simplify right side
    665,788,293.36x = 477,378,063,090,426,304
  5. Step 5: Solve for x
    x = 477,378,063,090,426,304/665,788,293.36
  6. Step 6: Final answer
    x = 717,011,800.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.