Home / 18,992,390-26,209,461.57-10,290,798.14

Finding the Fourth Proportional to 18,992,390, 26,209,461.57 and 10,290,798.14

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Solution

The fourth proportional to 18,992,390, 26,209,461.57 and 10,290,798.14 is: 14,201,281.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,992,390 : 26,209,461.57 = 10,290,798.14 : x
  2. Step 2: Convert to fraction form
    18,992,390/26,209,461.57 = 10,290,798.14/x
  3. Step 3: Cross multiply
    18,992,390x = 26,209,461.57 × 10,290,798.14
  4. Step 4: Simplify right side
    18,992,390x = 269,716,278,374,957.50
  5. Step 5: Solve for x
    x = 269,716,278,374,957.50/18,992,390
  6. Step 6: Final answer
    x = 14,201,281.59

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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.