Home / 13,207,989.80-19,811,984.70-4,689,187.40

Finding the Fourth Proportional to 13,207,989.80, 19,811,984.70 and 4,689,187.40

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Solution

The fourth proportional to 13,207,989.80, 19,811,984.70 and 4,689,187.40 is: 7,033,781.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,207,989.80 : 19,811,984.70 = 4,689,187.40 : x
  2. Step 2: Convert to fraction form
    13,207,989.80/19,811,984.70 = 4,689,187.40/x
  3. Step 3: Cross multiply
    13,207,989.80x = 19,811,984.70 × 4,689,187.40
  4. Step 4: Simplify right side
    13,207,989.80x = 92,902,109,024,232.78
  5. Step 5: Solve for x
    x = 92,902,109,024,232.78/13,207,989.80
  6. Step 6: Final answer
    x = 7,033,781.10

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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.