Home / 187,039,382.40-258,106,721.94-103,402,189.80

Finding the Fourth Proportional to 187,039,382.40, 258,106,721.94 and 103,402,189.80

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Solution

The fourth proportional to 187,039,382.40, 258,106,721.94 and 103,402,189.80 is: 142,690,806.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,039,382.40 : 258,106,721.94 = 103,402,189.80 : x
  2. Step 2: Convert to fraction form
    187,039,382.40/258,106,721.94 = 103,402,189.80/x
  3. Step 3: Cross multiply
    187,039,382.40x = 258,106,721.94 × 103,402,189.80
  4. Step 4: Simplify right side
    187,039,382.40x = 26,688,800,250,695,704
  5. Step 5: Solve for x
    x = 26,688,800,250,695,704/187,039,382.40
  6. Step 6: Final answer
    x = 142,690,806.12

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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.