Home / 13,631,281.60-20,488,912.80-12,875,454.40

Finding the Fourth Proportional to 13,631,281.60, 20,488,912.80 and 12,875,454.40

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Solution

The fourth proportional to 13,631,281.60, 20,488,912.80 and 12,875,454.40 is: 19,352,843.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,631,281.60 : 20,488,912.80 = 12,875,454.40 : x
  2. Step 2: Convert to fraction form
    13,631,281.60/20,488,912.80 = 12,875,454.40/x
  3. Step 3: Cross multiply
    13,631,281.60x = 20,488,912.80 × 12,875,454.40
  4. Step 4: Simplify right side
    13,631,281.60x = 263,804,062,461,976.34
  5. Step 5: Solve for x
    x = 263,804,062,461,976.34/13,631,281.60
  6. Step 6: Final answer
    x = 19,352,843.72

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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.