Home / 687,777,885.60-1,031,666,828.40-177,174,621.60

Finding the Fourth Proportional to 687,777,885.60, 1,031,666,828.40 and 177,174,621.60

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Solution

The fourth proportional to 687,777,885.60, 1,031,666,828.40 and 177,174,621.60 is: 265,761,932.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,777,885.60 : 1,031,666,828.40 = 177,174,621.60 : x
  2. Step 2: Convert to fraction form
    687,777,885.60/1,031,666,828.40 = 177,174,621.60/x
  3. Step 3: Cross multiply
    687,777,885.60x = 1,031,666,828.40 × 177,174,621.60
  4. Step 4: Simplify right side
    687,777,885.60x = 182,785,179,939,042,112
  5. Step 5: Solve for x
    x = 182,785,179,939,042,112/687,777,885.60
  6. Step 6: Final answer
    x = 265,761,932.40

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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.