Home / 485,258,039.40-727,887,059.10-347,508,532.20

Finding the Fourth Proportional to 485,258,039.40, 727,887,059.10 and 347,508,532.20

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Solution

The fourth proportional to 485,258,039.40, 727,887,059.10 and 347,508,532.20 is: 521,262,798.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,258,039.40 : 727,887,059.10 = 347,508,532.20 : x
  2. Step 2: Convert to fraction form
    485,258,039.40/727,887,059.10 = 347,508,532.20/x
  3. Step 3: Cross multiply
    485,258,039.40x = 727,887,059.10 × 347,508,532.20
  4. Step 4: Simplify right side
    485,258,039.40x = 252,946,963,515,215,648
  5. Step 5: Solve for x
    x = 252,946,963,515,215,648/485,258,039.40
  6. Step 6: Final answer
    x = 521,262,798.30

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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.