Home / 866,242,739.46-1,195,465,540.08-489,932,688.72

Finding the Fourth Proportional to 866,242,739.46, 1,195,465,540.08 and 489,932,688.72

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Solution

The fourth proportional to 866,242,739.46, 1,195,465,540.08 and 489,932,688.72 is: 676,135,706.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,242,739.46 : 1,195,465,540.08 = 489,932,688.72 : x
  2. Step 2: Convert to fraction form
    866,242,739.46/1,195,465,540.08 = 489,932,688.72/x
  3. Step 3: Cross multiply
    866,242,739.46x = 1,195,465,540.08 × 489,932,688.72
  4. Step 4: Simplify right side
    866,242,739.46x = 585,697,646,323,501,312
  5. Step 5: Solve for x
    x = 585,697,646,323,501,312/866,242,739.46
  6. Step 6: Final answer
    x = 676,135,706.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.