Home / 84,085,619,089.04-126,128,755,859.77-20,342,862,687.86

Finding the Fourth Proportional to 84,085,619,089.04, 126,128,755,859.77 and 20,342,862,687.86

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Solution

The fourth proportional to 84,085,619,089.04, 126,128,755,859.77 and 20,342,862,687.86 is: 30,514,373,197.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,085,619,089.04 : 126,128,755,859.77 = 20,342,862,687.86 : x
  2. Step 2: Convert to fraction form
    84,085,619,089.04/126,128,755,859.77 = 20,342,862,687.86/x
  3. Step 3: Cross multiply
    84,085,619,089.04x = 126,128,755,859.77 × 20,342,862,687.86
  4. Step 4: Simplify right side
    84,085,619,089.04x = 2,565,819,961,445,918,441,472
  5. Step 5: Solve for x
    x = 2,565,819,961,445,918,441,472/84,085,619,089.04
  6. Step 6: Final answer
    x = 30,514,373,197.74

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1.5x scale

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.