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Finding the Fourth Proportional to 247,788,019.60, 371,682,029.40 and 75,264,499.60

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Solution

The fourth proportional to 247,788,019.60, 371,682,029.40 and 75,264,499.60 is: 112,896,749.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,788,019.60 : 371,682,029.40 = 75,264,499.60 : x
  2. Step 2: Convert to fraction form
    247,788,019.60/371,682,029.40 = 75,264,499.60/x
  3. Step 3: Cross multiply
    247,788,019.60x = 371,682,029.40 × 75,264,499.60
  4. Step 4: Simplify right side
    247,788,019.60x = 27,974,461,953,103,484
  5. Step 5: Solve for x
    x = 27,974,461,953,103,484/247,788,019.60
  6. Step 6: Final answer
    x = 112,896,749.40

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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.