Home / 112,172,566.76-154,823,970.12-65,777,767.46

Finding the Fourth Proportional to 112,172,566.76, 154,823,970.12 and 65,777,767.46

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Solution

The fourth proportional to 112,172,566.76, 154,823,970.12 and 65,777,767.46 is: 90,788,464.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,172,566.76 : 154,823,970.12 = 65,777,767.46 : x
  2. Step 2: Convert to fraction form
    112,172,566.76/154,823,970.12 = 65,777,767.46/x
  3. Step 3: Cross multiply
    112,172,566.76x = 154,823,970.12 × 65,777,767.46
  4. Step 4: Simplify right side
    112,172,566.76x = 10,183,975,103,347,152
  5. Step 5: Solve for x
    x = 10,183,975,103,347,152/112,172,566.76
  6. Step 6: Final answer
    x = 90,788,464.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.