Home / 13,252,511.20-19,878,766.80-13,168,530.40

Finding the Fourth Proportional to 13,252,511.20, 19,878,766.80 and 13,168,530.40

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Solution

The fourth proportional to 13,252,511.20, 19,878,766.80 and 13,168,530.40 is: 19,752,795.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,252,511.20 : 19,878,766.80 = 13,168,530.40 : x
  2. Step 2: Convert to fraction form
    13,252,511.20/19,878,766.80 = 13,168,530.40/x
  3. Step 3: Cross multiply
    13,252,511.20x = 19,878,766.80 × 13,168,530.40
  4. Step 4: Simplify right side
    13,252,511.20x = 261,774,144,920,310.75
  5. Step 5: Solve for x
    x = 261,774,144,920,310.75/13,252,511.20
  6. Step 6: Final answer
    x = 19,752,795.60

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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.