Home / 42,686,977.51-64,020,883.11-19,635,773.35

Finding the Fourth Proportional to 42,686,977.51, 64,020,883.11 and 19,635,773.35

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Solution

The fourth proportional to 42,686,977.51, 64,020,883.11 and 19,635,773.35 is: 29,449,251.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,686,977.51 : 64,020,883.11 = 19,635,773.35 : x
  2. Step 2: Convert to fraction form
    42,686,977.51/64,020,883.11 = 19,635,773.35/x
  3. Step 3: Cross multiply
    42,686,977.51x = 64,020,883.11 × 19,635,773.35
  4. Step 4: Simplify right side
    42,686,977.51x = 1,257,099,550,414,803.25
  5. Step 5: Solve for x
    x = 1,257,099,550,414,803.25/42,686,977.51
  6. Step 6: Final answer
    x = 29,449,251.83

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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.