Home / 78,298,983.68-117,449,656.68-27,182,626.52

Finding the Fourth Proportional to 78,298,983.68, 117,449,656.68 and 27,182,626.52

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Solution

The fourth proportional to 78,298,983.68, 117,449,656.68 and 27,182,626.52 is: 40,774,349.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,298,983.68 : 117,449,656.68 = 27,182,626.52 : x
  2. Step 2: Convert to fraction form
    78,298,983.68/117,449,656.68 = 27,182,626.52/x
  3. Step 3: Cross multiply
    78,298,983.68x = 117,449,656.68 × 27,182,626.52
  4. Step 4: Simplify right side
    78,298,983.68x = 3,192,590,152,434,663.50
  5. Step 5: Solve for x
    x = 3,192,590,152,434,663.50/78,298,983.68
  6. Step 6: Final answer
    x = 40,774,349.84

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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.