Home / 91,212,079.96-137,036,389.12-58,486,765.13

Finding the Fourth Proportional to 91,212,079.96, 137,036,389.12 and 58,486,765.13

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Solution

The fourth proportional to 91,212,079.96, 137,036,389.12 and 58,486,765.13 is: 87,870,105.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,212,079.96 : 137,036,389.12 = 58,486,765.13 : x
  2. Step 2: Convert to fraction form
    91,212,079.96/137,036,389.12 = 58,486,765.13/x
  3. Step 3: Cross multiply
    91,212,079.96x = 137,036,389.12 × 58,486,765.13
  4. Step 4: Simplify right side
    91,212,079.96x = 8,014,815,103,991,516
  5. Step 5: Solve for x
    x = 8,014,815,103,991,516/91,212,079.96
  6. Step 6: Final answer
    x = 87,870,105.67

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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.