Home / 318,311,298.72-477,466,921.44-88,280,379.36

Finding the Fourth Proportional to 318,311,298.72, 477,466,921.44 and 88,280,379.36

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Solution

The fourth proportional to 318,311,298.72, 477,466,921.44 and 88,280,379.36 is: 132,420,561.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,311,298.72 : 477,466,921.44 = 88,280,379.36 : x
  2. Step 2: Convert to fraction form
    318,311,298.72/477,466,921.44 = 88,280,379.36/x
  3. Step 3: Cross multiply
    318,311,298.72x = 477,466,921.44 × 88,280,379.36
  4. Step 4: Simplify right side
    318,311,298.72x = 42,150,960,956,574,520
  5. Step 5: Solve for x
    x = 42,150,960,956,574,520/318,311,298.72
  6. Step 6: Final answer
    x = 132,420,561.65

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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.