Home / 85,349,076.30-128,023,614.45-63,825,715.80

Finding the Fourth Proportional to 85,349,076.30, 128,023,614.45 and 63,825,715.80

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Solution

The fourth proportional to 85,349,076.30, 128,023,614.45 and 63,825,715.80 is: 95,738,573.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,349,076.30 : 128,023,614.45 = 63,825,715.80 : x
  2. Step 2: Convert to fraction form
    85,349,076.30/128,023,614.45 = 63,825,715.80/x
  3. Step 3: Cross multiply
    85,349,076.30x = 128,023,614.45 × 63,825,715.80
  4. Step 4: Simplify right side
    85,349,076.30x = 8,171,198,831,574,473
  5. Step 5: Solve for x
    x = 8,171,198,831,574,473/85,349,076.30
  6. Step 6: Final answer
    x = 95,738,573.70

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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.