Home / 138,696,966.63-208,075,265.59-40,330,382.71

Finding the Fourth Proportional to 138,696,966.63, 208,075,265.59 and 40,330,382.71

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Solution

The fourth proportional to 138,696,966.63, 208,075,265.59 and 40,330,382.71 is: 60,504,243.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,696,966.63 : 208,075,265.59 = 40,330,382.71 : x
  2. Step 2: Convert to fraction form
    138,696,966.63/208,075,265.59 = 40,330,382.71/x
  3. Step 3: Cross multiply
    138,696,966.63x = 208,075,265.59 × 40,330,382.71
  4. Step 4: Simplify right side
    138,696,966.63x = 8,391,755,093,574,140
  5. Step 5: Solve for x
    x = 8,391,755,093,574,140/138,696,966.63
  6. Step 6: Final answer
    x = 60,504,243.87

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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.