Home / 128,516,608,132.80-192,774,912,199.20-89,334,526,084.80

Finding the Fourth Proportional to 128,516,608,132.80, 192,774,912,199.20 and 89,334,526,084.80

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Solution

The fourth proportional to 128,516,608,132.80, 192,774,912,199.20 and 89,334,526,084.80 is: 134,001,789,127.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,516,608,132.80 : 192,774,912,199.20 = 89,334,526,084.80 : x
  2. Step 2: Convert to fraction form
    128,516,608,132.80/192,774,912,199.20 = 89,334,526,084.80/x
  3. Step 3: Cross multiply
    128,516,608,132.80x = 192,774,912,199.20 × 89,334,526,084.80
  4. Step 4: Simplify right side
    128,516,608,132.80x = 17,221,455,422,354,463,129,600
  5. Step 5: Solve for x
    x = 17,221,455,422,354,463,129,600/128,516,608,132.80
  6. Step 6: Final answer
    x = 134,001,789,127.20

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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.