Home / 18,731,895.30-28,090,844.55-13,035,197.70

Finding the Fourth Proportional to 18,731,895.30, 28,090,844.55 and 13,035,197.70

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Solution

The fourth proportional to 18,731,895.30, 28,090,844.55 and 13,035,197.70 is: 19,547,926.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,731,895.30 : 28,090,844.55 = 13,035,197.70 : x
  2. Step 2: Convert to fraction form
    18,731,895.30/28,090,844.55 = 13,035,197.70/x
  3. Step 3: Cross multiply
    18,731,895.30x = 28,090,844.55 × 13,035,197.70
  4. Step 4: Simplify right side
    18,731,895.30x = 366,169,712,269,217.50
  5. Step 5: Solve for x
    x = 366,169,712,269,217.50/18,731,895.30
  6. Step 6: Final answer
    x = 19,547,926.49

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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.