Home / 124,768,021.60-187,164,538.80-42,876,114.40

Finding the Fourth Proportional to 124,768,021.60, 187,164,538.80 and 42,876,114.40

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Solution

The fourth proportional to 124,768,021.60, 187,164,538.80 and 42,876,114.40 is: 64,318,469.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,768,021.60 : 187,164,538.80 = 42,876,114.40 : x
  2. Step 2: Convert to fraction form
    124,768,021.60/187,164,538.80 = 42,876,114.40/x
  3. Step 3: Cross multiply
    124,768,021.60x = 187,164,538.80 × 42,876,114.40
  4. Step 4: Simplify right side
    124,768,021.60x = 8,024,888,177,212,039
  5. Step 5: Solve for x
    x = 8,024,888,177,212,039/124,768,021.60
  6. Step 6: Final answer
    x = 64,318,469.38

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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.