Home / 888,684,685.95-1,227,209,230.46-665,278,513.45

Finding the Fourth Proportional to 888,684,685.95, 1,227,209,230.46 and 665,278,513.45

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Solution

The fourth proportional to 888,684,685.95, 1,227,209,230.46 and 665,278,513.45 is: 918,701,475.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,684,685.95 : 1,227,209,230.46 = 665,278,513.45 : x
  2. Step 2: Convert to fraction form
    888,684,685.95/1,227,209,230.46 = 665,278,513.45/x
  3. Step 3: Cross multiply
    888,684,685.95x = 1,227,209,230.46 × 665,278,513.45
  4. Step 4: Simplify right side
    888,684,685.95x = 816,435,932,532,547,328
  5. Step 5: Solve for x
    x = 816,435,932,532,547,328/888,684,685.95
  6. Step 6: Final answer
    x = 918,701,475.83

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1.5x scale

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.