Home / 157,439,509.40-236,203,500.90-76,663,112.60

Finding the Fourth Proportional to 157,439,509.40, 236,203,500.90 and 76,663,112.60

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Solution

The fourth proportional to 157,439,509.40, 236,203,500.90 and 76,663,112.60 is: 115,016,209.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,439,509.40 : 236,203,500.90 = 76,663,112.60 : x
  2. Step 2: Convert to fraction form
    157,439,509.40/236,203,500.90 = 76,663,112.60/x
  3. Step 3: Cross multiply
    157,439,509.40x = 236,203,500.90 × 76,663,112.60
  4. Step 4: Simplify right side
    157,439,509.40x = 18,108,095,586,010,900
  5. Step 5: Solve for x
    x = 18,108,095,586,010,900/157,439,509.40
  6. Step 6: Final answer
    x = 115,016,209.43

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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.