Home / 21,487,261.20-32,230,891.80-21,263,312.40

Finding the Fourth Proportional to 21,487,261.20, 32,230,891.80 and 21,263,312.40

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Solution

The fourth proportional to 21,487,261.20, 32,230,891.80 and 21,263,312.40 is: 31,894,968.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,487,261.20 : 32,230,891.80 = 21,263,312.40 : x
  2. Step 2: Convert to fraction form
    21,487,261.20/32,230,891.80 = 21,263,312.40/x
  3. Step 3: Cross multiply
    21,487,261.20x = 32,230,891.80 × 21,263,312.40
  4. Step 4: Simplify right side
    21,487,261.20x = 685,335,521,273,998.25
  5. Step 5: Solve for x
    x = 685,335,521,273,998.25/21,487,261.20
  6. Step 6: Final answer
    x = 31,894,968.60

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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.