Home / 442,847,259.60-664,270,889.40-115,322,139.60

Finding the Fourth Proportional to 442,847,259.60, 664,270,889.40 and 115,322,139.60

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Solution

The fourth proportional to 442,847,259.60, 664,270,889.40 and 115,322,139.60 is: 172,983,209.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,847,259.60 : 664,270,889.40 = 115,322,139.60 : x
  2. Step 2: Convert to fraction form
    442,847,259.60/664,270,889.40 = 115,322,139.60/x
  3. Step 3: Cross multiply
    442,847,259.60x = 664,270,889.40 × 115,322,139.60
  4. Step 4: Simplify right side
    442,847,259.60x = 76,605,140,239,602,960
  5. Step 5: Solve for x
    x = 76,605,140,239,602,960/442,847,259.60
  6. Step 6: Final answer
    x = 172,983,209.40

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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.