Home / 478,962,069.60-718,443,104.40-427,306,004.40

Finding the Fourth Proportional to 478,962,069.60, 718,443,104.40 and 427,306,004.40

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Solution

The fourth proportional to 478,962,069.60, 718,443,104.40 and 427,306,004.40 is: 640,959,006.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,962,069.60 : 718,443,104.40 = 427,306,004.40 : x
  2. Step 2: Convert to fraction form
    478,962,069.60/718,443,104.40 = 427,306,004.40/x
  3. Step 3: Cross multiply
    478,962,069.60x = 718,443,104.40 × 427,306,004.40
  4. Step 4: Simplify right side
    478,962,069.60x = 306,995,052,329,896,064
  5. Step 5: Solve for x
    x = 306,995,052,329,896,064/478,962,069.60
  6. Step 6: Final answer
    x = 640,959,006.60

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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.