Home / 14,278,828.80-21,386,750.40-8,589,129.60

Finding the Fourth Proportional to 14,278,828.80, 21,386,750.40 and 8,589,129.60

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Solution

The fourth proportional to 14,278,828.80, 21,386,750.40 and 8,589,129.60 is: 12,864,750.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,278,828.80 : 21,386,750.40 = 8,589,129.60 : x
  2. Step 2: Convert to fraction form
    14,278,828.80/21,386,750.40 = 8,589,129.60/x
  3. Step 3: Cross multiply
    14,278,828.80x = 21,386,750.40 × 8,589,129.60
  4. Step 4: Simplify right side
    14,278,828.80x = 183,693,570,908,451.81
  5. Step 5: Solve for x
    x = 183,693,570,908,451.81/14,278,828.80
  6. Step 6: Final answer
    x = 12,864,750.57

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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.