Home / 2,145,443,983.64-2,960,878,359.10-1,287,150,746.92

Finding the Fourth Proportional to 2,145,443,983.64, 2,960,878,359.10 and 1,287,150,746.92

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Solution

The fourth proportional to 2,145,443,983.64, 2,960,878,359.10 and 1,287,150,746.92 is: 1,776,367,418.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,145,443,983.64 : 2,960,878,359.10 = 1,287,150,746.92 : x
  2. Step 2: Convert to fraction form
    2,145,443,983.64/2,960,878,359.10 = 1,287,150,746.92/x
  3. Step 3: Cross multiply
    2,145,443,983.64x = 2,960,878,359.10 × 1,287,150,746.92
  4. Step 4: Simplify right side
    2,145,443,983.64x = 3,811,096,791,455,073,792
  5. Step 5: Solve for x
    x = 3,811,096,791,455,073,792/2,145,443,983.64
  6. Step 6: Final answer
    x = 1,776,367,418.82

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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.