Home / 21,456,099.30-32,184,148.95-12,386,172.90

Finding the Fourth Proportional to 21,456,099.30, 32,184,148.95 and 12,386,172.90

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Solution

The fourth proportional to 21,456,099.30, 32,184,148.95 and 12,386,172.90 is: 18,579,259.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,456,099.30 : 32,184,148.95 = 12,386,172.90 : x
  2. Step 2: Convert to fraction form
    21,456,099.30/32,184,148.95 = 12,386,172.90/x
  3. Step 3: Cross multiply
    21,456,099.30x = 32,184,148.95 × 12,386,172.90
  4. Step 4: Simplify right side
    21,456,099.30x = 398,638,433,534,053.44
  5. Step 5: Solve for x
    x = 398,638,433,534,053.44/21,456,099.30
  6. Step 6: Final answer
    x = 18,579,259.35

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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.