Home / 217,239,281.18-326,003,811.99-79,064,849.81

Finding the Fourth Proportional to 217,239,281.18, 326,003,811.99 and 79,064,849.81

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Solution

The fourth proportional to 217,239,281.18, 326,003,811.99 and 79,064,849.81 is: 118,650,007.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,239,281.18 : 326,003,811.99 = 79,064,849.81 : x
  2. Step 2: Convert to fraction form
    217,239,281.18/326,003,811.99 = 79,064,849.81/x
  3. Step 3: Cross multiply
    217,239,281.18x = 326,003,811.99 × 79,064,849.81
  4. Step 4: Simplify right side
    217,239,281.18x = 25,775,442,431,829,672
  5. Step 5: Solve for x
    x = 25,775,442,431,829,672/217,239,281.18
  6. Step 6: Final answer
    x = 118,650,007.91

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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.