Home / 78,556,749.12-108,421,505.84-45,537,652.76

Finding the Fourth Proportional to 78,556,749.12, 108,421,505.84 and 45,537,652.76

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Solution

The fourth proportional to 78,556,749.12, 108,421,505.84 and 45,537,652.76 is: 62,849,607.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,556,749.12 : 108,421,505.84 = 45,537,652.76 : x
  2. Step 2: Convert to fraction form
    78,556,749.12/108,421,505.84 = 45,537,652.76/x
  3. Step 3: Cross multiply
    78,556,749.12x = 108,421,505.84 × 45,537,652.76
  4. Step 4: Simplify right side
    78,556,749.12x = 4,937,260,884,658,232
  5. Step 5: Solve for x
    x = 4,937,260,884,658,232/78,556,749.12
  6. Step 6: Final answer
    x = 62,849,607.96

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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.