Home / 772,689,095.20-1,160,377,335.60-409,892,039.20

Finding the Fourth Proportional to 772,689,095.20, 1,160,377,335.60 and 409,892,039.20

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Solution

The fourth proportional to 772,689,095.20, 1,160,377,335.60 and 409,892,039.20 is: 615,550,853.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,689,095.20 : 1,160,377,335.60 = 409,892,039.20 : x
  2. Step 2: Convert to fraction form
    772,689,095.20/1,160,377,335.60 = 409,892,039.20/x
  3. Step 3: Cross multiply
    772,689,095.20x = 1,160,377,335.60 × 409,892,039.20
  4. Step 4: Simplify right side
    772,689,095.20x = 475,629,432,330,546,688
  5. Step 5: Solve for x
    x = 475,629,432,330,546,688/772,689,095.20
  6. Step 6: Final answer
    x = 615,550,853.88

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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.