Home / 21,456,029.80-32,184,044.70-12,386,103.40

Finding the Fourth Proportional to 21,456,029.80, 32,184,044.70 and 12,386,103.40

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Solution

The fourth proportional to 21,456,029.80, 32,184,044.70 and 12,386,103.40 is: 18,579,155.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,456,029.80 : 32,184,044.70 = 12,386,103.40 : x
  2. Step 2: Convert to fraction form
    21,456,029.80/32,184,044.70 = 12,386,103.40/x
  3. Step 3: Cross multiply
    21,456,029.80x = 32,184,044.70 × 12,386,103.40
  4. Step 4: Simplify right side
    21,456,029.80x = 398,634,905,484,422
  5. Step 5: Solve for x
    x = 398,634,905,484,422/21,456,029.80
  6. Step 6: Final answer
    x = 18,579,155.10

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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.