Home / 14,680,987.12-20,265,412.32-9,784,422.49

Finding the Fourth Proportional to 14,680,987.12, 20,265,412.32 and 9,784,422.49

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Solution

The fourth proportional to 14,680,987.12, 20,265,412.32 and 9,784,422.49 is: 13,506,268.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,680,987.12 : 20,265,412.32 = 9,784,422.49 : x
  2. Step 2: Convert to fraction form
    14,680,987.12/20,265,412.32 = 9,784,422.49/x
  3. Step 3: Cross multiply
    14,680,987.12x = 20,265,412.32 × 9,784,422.49
  4. Step 4: Simplify right side
    14,680,987.12x = 198,285,356,072,931.09
  5. Step 5: Solve for x
    x = 198,285,356,072,931.09/14,680,987.12
  6. Step 6: Final answer
    x = 13,506,268.65

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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.