Home / 78,441,830.40-108,249,431.04-45,840,322.56

Finding the Fourth Proportional to 78,441,830.40, 108,249,431.04 and 45,840,322.56

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Solution

The fourth proportional to 78,441,830.40, 108,249,431.04 and 45,840,322.56 is: 63,259,472.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,441,830.40 : 108,249,431.04 = 45,840,322.56 : x
  2. Step 2: Convert to fraction form
    78,441,830.40/108,249,431.04 = 45,840,322.56/x
  3. Step 3: Cross multiply
    78,441,830.40x = 108,249,431.04 × 45,840,322.56
  4. Step 4: Simplify right side
    78,441,830.40x = 4,962,188,835,810,077
  5. Step 5: Solve for x
    x = 4,962,188,835,810,077/78,441,830.40
  6. Step 6: Final answer
    x = 63,259,472.79

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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.