Home / 42,646,029.72-63,968,992.74-13,892,118.36

Finding the Fourth Proportional to 42,646,029.72, 63,968,992.74 and 13,892,118.36

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Solution

The fourth proportional to 42,646,029.72, 63,968,992.74 and 13,892,118.36 is: 20,838,160.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,646,029.72 : 63,968,992.74 = 13,892,118.36 : x
  2. Step 2: Convert to fraction form
    42,646,029.72/63,968,992.74 = 13,892,118.36/x
  3. Step 3: Cross multiply
    42,646,029.72x = 63,968,992.74 × 13,892,118.36
  4. Step 4: Simplify right side
    42,646,029.72x = 888,664,818,514,060.75
  5. Step 5: Solve for x
    x = 888,664,818,514,060.75/42,646,029.72
  6. Step 6: Final answer
    x = 20,838,160.65

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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.