Home / 85,907,230.20-128,719,127.70-73,152,646.20

Finding the Fourth Proportional to 85,907,230.20, 128,719,127.70 and 73,152,646.20

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Solution

The fourth proportional to 85,907,230.20, 128,719,127.70 and 73,152,646.20 is: 109,608,292.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,907,230.20 : 128,719,127.70 = 73,152,646.20 : x
  2. Step 2: Convert to fraction form
    85,907,230.20/128,719,127.70 = 73,152,646.20/x
  3. Step 3: Cross multiply
    85,907,230.20x = 128,719,127.70 × 73,152,646.20
  4. Step 4: Simplify right side
    85,907,230.20x = 9,416,144,807,810,720
  5. Step 5: Solve for x
    x = 9,416,144,807,810,720/85,907,230.20
  6. Step 6: Final answer
    x = 109,608,292.41

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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.