Home / 128,516,608,140.80-192,774,912,211.20-89,334,526,092.80

Finding the Fourth Proportional to 128,516,608,140.80, 192,774,912,211.20 and 89,334,526,092.80

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Solution

The fourth proportional to 128,516,608,140.80, 192,774,912,211.20 and 89,334,526,092.80 is: 134,001,789,139.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,516,608,140.80 : 192,774,912,211.20 = 89,334,526,092.80 : x
  2. Step 2: Convert to fraction form
    128,516,608,140.80/192,774,912,211.20 = 89,334,526,092.80/x
  3. Step 3: Cross multiply
    128,516,608,140.80x = 192,774,912,211.20 × 89,334,526,092.80
  4. Step 4: Simplify right side
    128,516,608,140.80x = 17,221,455,424,968,678,440,960
  5. Step 5: Solve for x
    x = 17,221,455,424,968,678,440,960/128,516,608,140.80
  6. Step 6: Final answer
    x = 134,001,789,139.20

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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.