Home / 390,205,098.60-585,250,673.79-113,782,032.96

Finding the Fourth Proportional to 390,205,098.60, 585,250,673.79 and 113,782,032.96

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Solution

The fourth proportional to 390,205,098.60, 585,250,673.79 and 113,782,032.96 is: 170,656,436.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,205,098.60 : 585,250,673.79 = 113,782,032.96 : x
  2. Step 2: Convert to fraction form
    390,205,098.60/585,250,673.79 = 113,782,032.96/x
  3. Step 3: Cross multiply
    390,205,098.60x = 585,250,673.79 × 113,782,032.96
  4. Step 4: Simplify right side
    390,205,098.60x = 66,591,011,455,035,976
  5. Step 5: Solve for x
    x = 66,591,011,455,035,976/390,205,098.60
  6. Step 6: Final answer
    x = 170,656,436.05

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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.