Home / 21,235,848.76-29,307,959.22-12,069,869.32

Finding the Fourth Proportional to 21,235,848.76, 29,307,959.22 and 12,069,869.32

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Solution

The fourth proportional to 21,235,848.76, 29,307,959.22 and 12,069,869.32 is: 16,657,833.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,235,848.76 : 29,307,959.22 = 12,069,869.32 : x
  2. Step 2: Convert to fraction form
    21,235,848.76/29,307,959.22 = 12,069,869.32/x
  3. Step 3: Cross multiply
    21,235,848.76x = 29,307,959.22 × 12,069,869.32
  4. Step 4: Simplify right side
    21,235,848.76x = 353,743,237,821,289.12
  5. Step 5: Solve for x
    x = 353,743,237,821,289.12/21,235,848.76
  6. Step 6: Final answer
    x = 16,657,833.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.