Home / 511,516,010.80-767,274,016.20-188,357,892.40

Finding the Fourth Proportional to 511,516,010.80, 767,274,016.20 and 188,357,892.40

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Solution

The fourth proportional to 511,516,010.80, 767,274,016.20 and 188,357,892.40 is: 282,536,838.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,516,010.80 : 767,274,016.20 = 188,357,892.40 : x
  2. Step 2: Convert to fraction form
    511,516,010.80/767,274,016.20 = 188,357,892.40/x
  3. Step 3: Cross multiply
    511,516,010.80x = 767,274,016.20 × 188,357,892.40
  4. Step 4: Simplify right side
    511,516,010.80x = 144,522,116,584,715,456
  5. Step 5: Solve for x
    x = 144,522,116,584,715,456/511,516,010.80
  6. Step 6: Final answer
    x = 282,536,838.60

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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.