Home / 21,235,847.76-29,307,957.84-12,069,868.32

Finding the Fourth Proportional to 21,235,847.76, 29,307,957.84 and 12,069,868.32

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Solution

The fourth proportional to 21,235,847.76, 29,307,957.84 and 12,069,868.32 is: 16,657,832.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,235,847.76 : 29,307,957.84 = 12,069,868.32 : x
  2. Step 2: Convert to fraction form
    21,235,847.76/29,307,957.84 = 12,069,868.32/x
  3. Step 3: Cross multiply
    21,235,847.76x = 29,307,957.84 × 12,069,868.32
  4. Step 4: Simplify right side
    21,235,847.76x = 353,743,191,856,911.62
  5. Step 5: Solve for x
    x = 353,743,191,856,911.62/21,235,847.76
  6. Step 6: Final answer
    x = 16,657,832.35

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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.