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Finding the Fourth Proportional to 478,962,002.70, 718,443,004.05 and 375,649,872.30

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Solution

The fourth proportional to 478,962,002.70, 718,443,004.05 and 375,649,872.30 is: 563,474,808.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,962,002.70 : 718,443,004.05 = 375,649,872.30 : x
  2. Step 2: Convert to fraction form
    478,962,002.70/718,443,004.05 = 375,649,872.30/x
  3. Step 3: Cross multiply
    478,962,002.70x = 718,443,004.05 × 375,649,872.30
  4. Step 4: Simplify right side
    478,962,002.70x = 269,883,022,726,210,880
  5. Step 5: Solve for x
    x = 269,883,022,726,210,880/478,962,002.70
  6. Step 6: Final answer
    x = 563,474,808.45

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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.