Home / 155,996,416.89-215,272,405.49-86,380,303.10

Finding the Fourth Proportional to 155,996,416.89, 215,272,405.49 and 86,380,303.10

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Solution

The fourth proportional to 155,996,416.89, 215,272,405.49 and 86,380,303.10 is: 119,203,350.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,996,416.89 : 215,272,405.49 = 86,380,303.10 : x
  2. Step 2: Convert to fraction form
    155,996,416.89/215,272,405.49 = 86,380,303.10/x
  3. Step 3: Cross multiply
    155,996,416.89x = 215,272,405.49 × 86,380,303.10
  4. Step 4: Simplify right side
    155,996,416.89x = 18,595,295,633,784,040
  5. Step 5: Solve for x
    x = 18,595,295,633,784,040/155,996,416.89
  6. Step 6: Final answer
    x = 119,203,350.98

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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.