Home / 18,731,259.14-28,079,837.40-7,209,370.40

Finding the Fourth Proportional to 18,731,259.14, 28,079,837.40 and 7,209,370.40

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Solution

The fourth proportional to 18,731,259.14, 28,079,837.40 and 7,209,370.40 is: 10,807,492.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,731,259.14 : 28,079,837.40 = 7,209,370.40 : x
  2. Step 2: Convert to fraction form
    18,731,259.14/28,079,837.40 = 7,209,370.40/x
  3. Step 3: Cross multiply
    18,731,259.14x = 28,079,837.40 × 7,209,370.40
  4. Step 4: Simplify right side
    18,731,259.14x = 202,437,948,588,372.97
  5. Step 5: Solve for x
    x = 202,437,948,588,372.97/18,731,259.14
  6. Step 6: Final answer
    x = 10,807,492.82

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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.