Home / 12,988,503.17-17,924,293.80-7,187,824.65

Finding the Fourth Proportional to 12,988,503.17, 17,924,293.80 and 7,187,824.65

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Solution

The fourth proportional to 12,988,503.17, 17,924,293.80 and 7,187,824.65 is: 9,919,286.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,988,503.17 : 17,924,293.80 = 7,187,824.65 : x
  2. Step 2: Convert to fraction form
    12,988,503.17/17,924,293.80 = 7,187,824.65/x
  3. Step 3: Cross multiply
    12,988,503.17x = 17,924,293.80 × 7,187,824.65
  4. Step 4: Simplify right side
    12,988,503.17x = 128,836,680,809,482.19
  5. Step 5: Solve for x
    x = 128,836,680,809,482.19/12,988,503.17
  6. Step 6: Final answer
    x = 9,919,286.25

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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.