Home / 51,991,155.86-71,750,035.10-28,786,281.53

Finding the Fourth Proportional to 51,991,155.86, 71,750,035.10 and 28,786,281.53

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Solution

The fourth proportional to 51,991,155.86, 71,750,035.10 and 28,786,281.53 is: 39,726,308.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,991,155.86 : 71,750,035.10 = 28,786,281.53 : x
  2. Step 2: Convert to fraction form
    51,991,155.86/71,750,035.10 = 28,786,281.53/x
  3. Step 3: Cross multiply
    51,991,155.86x = 71,750,035.10 × 28,786,281.53
  4. Step 4: Simplify right side
    51,991,155.86x = 2,065,416,709,889,197.25
  5. Step 5: Solve for x
    x = 2,065,416,709,889,197.25/51,991,155.86
  6. Step 6: Final answer
    x = 39,726,308.75

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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.