Home / 485,095,272.60-727,642,908.90-140,060,155.80

Finding the Fourth Proportional to 485,095,272.60, 727,642,908.90 and 140,060,155.80

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Solution

The fourth proportional to 485,095,272.60, 727,642,908.90 and 140,060,155.80 is: 210,090,233.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,095,272.60 : 727,642,908.90 = 140,060,155.80 : x
  2. Step 2: Convert to fraction form
    485,095,272.60/727,642,908.90 = 140,060,155.80/x
  3. Step 3: Cross multiply
    485,095,272.60x = 727,642,908.90 × 140,060,155.80
  4. Step 4: Simplify right side
    485,095,272.60x = 101,913,779,187,299,216
  5. Step 5: Solve for x
    x = 101,913,779,187,299,216/485,095,272.60
  6. Step 6: Final answer
    x = 210,090,233.70

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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.