Home / 18,690,683.08-28,038,988.91-7,908,064.13

Finding the Fourth Proportional to 18,690,683.08, 28,038,988.91 and 7,908,064.13

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Solution

The fourth proportional to 18,690,683.08, 28,038,988.91 and 7,908,064.13 is: 11,863,350.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,690,683.08 : 28,038,988.91 = 7,908,064.13 : x
  2. Step 2: Convert to fraction form
    18,690,683.08/28,038,988.91 = 7,908,064.13/x
  3. Step 3: Cross multiply
    18,690,683.08x = 28,038,988.91 × 7,908,064.13
  4. Step 4: Simplify right side
    18,690,683.08x = 221,734,122,320,214.03
  5. Step 5: Solve for x
    x = 221,734,122,320,214.03/18,690,683.08
  6. Step 6: Final answer
    x = 11,863,350.39

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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.