Home / 100,714,712,271.12-138,998,490,585.27-57,321,548,121.75

Finding the Fourth Proportional to 100,714,712,271.12, 138,998,490,585.27 and 57,321,548,121.75

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Solution

The fourth proportional to 100,714,712,271.12, 138,998,490,585.27 and 57,321,548,121.75 is: 79,110,672,981.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,714,712,271.12 : 138,998,490,585.27 = 57,321,548,121.75 : x
  2. Step 2: Convert to fraction form
    100,714,712,271.12/138,998,490,585.27 = 57,321,548,121.75/x
  3. Step 3: Cross multiply
    100,714,712,271.12x = 138,998,490,585.27 × 57,321,548,121.75
  4. Step 4: Simplify right side
    100,714,712,271.12x = 7,967,608,666,934,168,518,656
  5. Step 5: Solve for x
    x = 7,967,608,666,934,168,518,656/100,714,712,271.12
  6. Step 6: Final answer
    x = 79,110,672,981.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.