Home / 81,029,812.80-121,564,055.25-26,442,499.80

Finding the Fourth Proportional to 81,029,812.80, 121,564,055.25 and 26,442,499.80

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Solution

The fourth proportional to 81,029,812.80, 121,564,055.25 and 26,442,499.80 is: 39,670,059.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,029,812.80 : 121,564,055.25 = 26,442,499.80 : x
  2. Step 2: Convert to fraction form
    81,029,812.80/121,564,055.25 = 26,442,499.80/x
  3. Step 3: Cross multiply
    81,029,812.80x = 121,564,055.25 × 26,442,499.80
  4. Step 4: Simplify right side
    81,029,812.80x = 3,214,457,506,635,314
  5. Step 5: Solve for x
    x = 3,214,457,506,635,314/81,029,812.80
  6. Step 6: Final answer
    x = 39,670,059.64

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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.