Home / 78,556,748.12-108,421,504.46-45,537,651.76

Finding the Fourth Proportional to 78,556,748.12, 108,421,504.46 and 45,537,651.76

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Solution

The fourth proportional to 78,556,748.12, 108,421,504.46 and 45,537,651.76 is: 62,849,606.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,556,748.12 : 108,421,504.46 = 45,537,651.76 : x
  2. Step 2: Convert to fraction form
    78,556,748.12/108,421,504.46 = 45,537,651.76/x
  3. Step 3: Cross multiply
    78,556,748.12x = 108,421,504.46 × 45,537,651.76
  4. Step 4: Simplify right side
    78,556,748.12x = 4,937,260,713,394,766
  5. Step 5: Solve for x
    x = 4,937,260,713,394,766/78,556,748.12
  6. Step 6: Final answer
    x = 62,849,606.58

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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.