Home / 100,177,818.30-138,259,983.90-56,127,794.66

Finding the Fourth Proportional to 100,177,818.30, 138,259,983.90 and 56,127,794.66

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Solution

The fourth proportional to 100,177,818.30, 138,259,983.90 and 56,127,794.66 is: 77,464,533.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,177,818.30 : 138,259,983.90 = 56,127,794.66 : x
  2. Step 2: Convert to fraction form
    100,177,818.30/138,259,983.90 = 56,127,794.66/x
  3. Step 3: Cross multiply
    100,177,818.30x = 138,259,983.90 × 56,127,794.66
  4. Step 4: Simplify right side
    100,177,818.30x = 7,760,227,985,342,807
  5. Step 5: Solve for x
    x = 7,760,227,985,342,807/100,177,818.30
  6. Step 6: Final answer
    x = 77,464,533.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.