Home / 78,825,015.28-108,829,705.64-70,550,748.64

Finding the Fourth Proportional to 78,825,015.28, 108,829,705.64 and 70,550,748.64

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Solution

The fourth proportional to 78,825,015.28, 108,829,705.64 and 70,550,748.64 is: 97,405,844.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,825,015.28 : 108,829,705.64 = 70,550,748.64 : x
  2. Step 2: Convert to fraction form
    78,825,015.28/108,829,705.64 = 70,550,748.64/x
  3. Step 3: Cross multiply
    78,825,015.28x = 108,829,705.64 × 70,550,748.64
  4. Step 4: Simplify right side
    78,825,015.28x = 7,678,017,207,172,830
  5. Step 5: Solve for x
    x = 7,678,017,207,172,830/78,825,015.28
  6. Step 6: Final answer
    x = 97,405,844.83

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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.