Home / 760,766,076.78-1,141,292,474.30-288,206,666.72

Finding the Fourth Proportional to 760,766,076.78, 1,141,292,474.30 and 288,206,666.72

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Solution

The fourth proportional to 760,766,076.78, 1,141,292,474.30 and 288,206,666.72 is: 432,364,309.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,766,076.78 : 1,141,292,474.30 = 288,206,666.72 : x
  2. Step 2: Convert to fraction form
    760,766,076.78/1,141,292,474.30 = 288,206,666.72/x
  3. Step 3: Cross multiply
    760,766,076.78x = 1,141,292,474.30 × 288,206,666.72
  4. Step 4: Simplify right side
    760,766,076.78x = 328,928,099,763,476,736
  5. Step 5: Solve for x
    x = 328,928,099,763,476,736/760,766,076.78
  6. Step 6: Final answer
    x = 432,364,309.88

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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.