Home / 13,124,077.80-19,686,116.70-12,557,207.40

Finding the Fourth Proportional to 13,124,077.80, 19,686,116.70 and 12,557,207.40

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Solution

The fourth proportional to 13,124,077.80, 19,686,116.70 and 12,557,207.40 is: 18,835,811.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,124,077.80 : 19,686,116.70 = 12,557,207.40 : x
  2. Step 2: Convert to fraction form
    13,124,077.80/19,686,116.70 = 12,557,207.40/x
  3. Step 3: Cross multiply
    13,124,077.80x = 19,686,116.70 × 12,557,207.40
  4. Step 4: Simplify right side
    13,124,077.80x = 247,202,650,302,503.56
  5. Step 5: Solve for x
    x = 247,202,650,302,503.56/13,124,077.80
  6. Step 6: Final answer
    x = 18,835,811.10

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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.