Home / 687,777,892.60-1,031,666,838.90-177,174,628.60

Finding the Fourth Proportional to 687,777,892.60, 1,031,666,838.90 and 177,174,628.60

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Solution

The fourth proportional to 687,777,892.60, 1,031,666,838.90 and 177,174,628.60 is: 265,761,942.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,777,892.60 : 1,031,666,838.90 = 177,174,628.60 : x
  2. Step 2: Convert to fraction form
    687,777,892.60/1,031,666,838.90 = 177,174,628.60/x
  3. Step 3: Cross multiply
    687,777,892.60x = 1,031,666,838.90 × 177,174,628.60
  4. Step 4: Simplify right side
    687,777,892.60x = 182,785,189,021,043,520
  5. Step 5: Solve for x
    x = 182,785,189,021,043,520/687,777,892.60
  6. Step 6: Final answer
    x = 265,761,942.90

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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.