Home / 2,640,227,031.10-3,960,341,280.54-981,917,645.32

Finding the Fourth Proportional to 2,640,227,031.10, 3,960,341,280.54 and 981,917,645.32

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Solution

The fourth proportional to 2,640,227,031.10, 3,960,341,280.54 and 981,917,645.32 is: 1,472,876,740.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,640,227,031.10 : 3,960,341,280.54 = 981,917,645.32 : x
  2. Step 2: Convert to fraction form
    2,640,227,031.10/3,960,341,280.54 = 981,917,645.32/x
  3. Step 3: Cross multiply
    2,640,227,031.10x = 3,960,341,280.54 × 981,917,645.32
  4. Step 4: Simplify right side
    2,640,227,031.10x = 3,888,728,984,851,430,400
  5. Step 5: Solve for x
    x = 3,888,728,984,851,430,400/2,640,227,031.10
  6. Step 6: Final answer
    x = 1,472,876,740.92

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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.