Home / 71,139,314.80-98,172,320-38,544,266.80

Finding the Fourth Proportional to 71,139,314.80, 98,172,320 and 38,544,266.80

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Solution

The fourth proportional to 71,139,314.80, 98,172,320 and 38,544,266.80 is: 53,191,123.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,139,314.80 : 98,172,320 = 38,544,266.80 : x
  2. Step 2: Convert to fraction form
    71,139,314.80/98,172,320 = 38,544,266.80/x
  3. Step 3: Cross multiply
    71,139,314.80x = 98,172,320 × 38,544,266.80
  4. Step 4: Simplify right side
    71,139,314.80x = 3,783,980,094,454,975.50
  5. Step 5: Solve for x
    x = 3,783,980,094,454,975.50/71,139,314.80
  6. Step 6: Final answer
    x = 53,191,123.71

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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.