Home / 485,095,257.60-727,642,886.40-140,060,140.80

Finding the Fourth Proportional to 485,095,257.60, 727,642,886.40 and 140,060,140.80

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Solution

The fourth proportional to 485,095,257.60, 727,642,886.40 and 140,060,140.80 is: 210,090,211.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,095,257.60 : 727,642,886.40 = 140,060,140.80 : x
  2. Step 2: Convert to fraction form
    485,095,257.60/727,642,886.40 = 140,060,140.80/x
  3. Step 3: Cross multiply
    485,095,257.60x = 727,642,886.40 × 140,060,140.80
  4. Step 4: Simplify right side
    485,095,257.60x = 101,913,765,121,302,416
  5. Step 5: Solve for x
    x = 101,913,765,121,302,416/485,095,257.60
  6. Step 6: Final answer
    x = 210,090,211.20

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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.