Home / 42,686,992.40-64,020,905.40-19,635,788.24

Finding the Fourth Proportional to 42,686,992.40, 64,020,905.40 and 19,635,788.24

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Solution

The fourth proportional to 42,686,992.40, 64,020,905.40 and 19,635,788.24 is: 29,449,274.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,686,992.40 : 64,020,905.40 = 19,635,788.24 : x
  2. Step 2: Convert to fraction form
    42,686,992.40/64,020,905.40 = 19,635,788.24/x
  3. Step 3: Cross multiply
    42,686,992.40x = 64,020,905.40 × 19,635,788.24
  4. Step 4: Simplify right side
    42,686,992.40x = 1,257,100,941,367,472.25
  5. Step 5: Solve for x
    x = 1,257,100,941,367,472.25/42,686,992.40
  6. Step 6: Final answer
    x = 29,449,274.14

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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.