Home / 86,920,128,023.20-130,380,192,034.80-72,972,990,419.20

Finding the Fourth Proportional to 86,920,128,023.20, 130,380,192,034.80 and 72,972,990,419.20

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Solution

The fourth proportional to 86,920,128,023.20, 130,380,192,034.80 and 72,972,990,419.20 is: 109,459,485,628.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,920,128,023.20 : 130,380,192,034.80 = 72,972,990,419.20 : x
  2. Step 2: Convert to fraction form
    86,920,128,023.20/130,380,192,034.80 = 72,972,990,419.20/x
  3. Step 3: Cross multiply
    86,920,128,023.20x = 130,380,192,034.80 × 72,972,990,419.20
  4. Step 4: Simplify right side
    86,920,128,023.20x = 9,514,232,504,208,915,955,712
  5. Step 5: Solve for x
    x = 9,514,232,504,208,915,955,712/86,920,128,023.20
  6. Step 6: Final answer
    x = 109,459,485,628.80

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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.