Home / 18,822,729.60-28,252,756.80-9,248,918.40

Finding the Fourth Proportional to 18,822,729.60, 28,252,756.80 and 9,248,918.40

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Solution

The fourth proportional to 18,822,729.60, 28,252,756.80 and 9,248,918.40 is: 13,882,547.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,822,729.60 : 28,252,756.80 = 9,248,918.40 : x
  2. Step 2: Convert to fraction form
    18,822,729.60/28,252,756.80 = 9,248,918.40/x
  3. Step 3: Cross multiply
    18,822,729.60x = 28,252,756.80 × 9,248,918.40
  4. Step 4: Simplify right side
    18,822,729.60x = 261,307,442,218,245.12
  5. Step 5: Solve for x
    x = 261,307,442,218,245.12/18,822,729.60
  6. Step 6: Final answer
    x = 13,882,547.74

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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.