Home / 318,191,417.55-477,307,299.78-99,850,377.42

Finding the Fourth Proportional to 318,191,417.55, 477,307,299.78 and 99,850,377.42

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Solution

The fourth proportional to 318,191,417.55, 477,307,299.78 and 99,850,377.42 is: 149,781,896.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,191,417.55 : 477,307,299.78 = 99,850,377.42 : x
  2. Step 2: Convert to fraction form
    318,191,417.55/477,307,299.78 = 99,850,377.42/x
  3. Step 3: Cross multiply
    318,191,417.55x = 477,307,299.78 × 99,850,377.42
  4. Step 4: Simplify right side
    318,191,417.55x = 47,659,314,028,354,080
  5. Step 5: Solve for x
    x = 47,659,314,028,354,080/318,191,417.55
  6. Step 6: Final answer
    x = 149,781,896.68

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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.