Home / 86,920,128,029.60-130,380,192,044.40-84,471,247,901.60

Finding the Fourth Proportional to 86,920,128,029.60, 130,380,192,044.40 and 84,471,247,901.60

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Solution

The fourth proportional to 86,920,128,029.60, 130,380,192,044.40 and 84,471,247,901.60 is: 126,706,871,852.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,920,128,029.60 : 130,380,192,044.40 = 84,471,247,901.60 : x
  2. Step 2: Convert to fraction form
    86,920,128,029.60/130,380,192,044.40 = 84,471,247,901.60/x
  3. Step 3: Cross multiply
    86,920,128,029.60x = 130,380,192,044.40 × 84,471,247,901.60
  4. Step 4: Simplify right side
    86,920,128,029.60x = 11,013,377,523,640,728,289,280
  5. Step 5: Solve for x
    x = 11,013,377,523,640,728,289,280/86,920,128,029.60
  6. Step 6: Final answer
    x = 126,706,871,852.40

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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.