Home / 89,116,734.60-133,675,101.90-85,888,230.53

Finding the Fourth Proportional to 89,116,734.60, 133,675,101.90 and 85,888,230.53

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Solution

The fourth proportional to 89,116,734.60, 133,675,101.90 and 85,888,230.53 is: 128,832,345.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,116,734.60 : 133,675,101.90 = 85,888,230.53 : x
  2. Step 2: Convert to fraction form
    89,116,734.60/133,675,101.90 = 85,888,230.53/x
  3. Step 3: Cross multiply
    89,116,734.60x = 133,675,101.90 × 85,888,230.53
  4. Step 4: Simplify right side
    89,116,734.60x = 11,481,117,967,440,066
  5. Step 5: Solve for x
    x = 11,481,117,967,440,066/89,116,734.60
  6. Step 6: Final answer
    x = 128,832,345.79

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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.