Home / 84,085,619,111.80-126,128,755,893.90-20,342,862,710.64

Finding the Fourth Proportional to 84,085,619,111.80, 126,128,755,893.90 and 20,342,862,710.64

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Solution

The fourth proportional to 84,085,619,111.80, 126,128,755,893.90 and 20,342,862,710.64 is: 30,514,373,231.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,085,619,111.80 : 126,128,755,893.90 = 20,342,862,710.64 : x
  2. Step 2: Convert to fraction form
    84,085,619,111.80/126,128,755,893.90 = 20,342,862,710.64/x
  3. Step 3: Cross multiply
    84,085,619,111.80x = 126,128,755,893.90 × 20,342,862,710.64
  4. Step 4: Simplify right side
    84,085,619,111.80x = 2,565,819,965,013,432,991,744
  5. Step 5: Solve for x
    x = 2,565,819,965,013,432,991,744/84,085,619,111.80
  6. Step 6: Final answer
    x = 30,514,373,231.91

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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.