Home / 13,306,881.20-19,960,321.80-7,260,263.60

Finding the Fourth Proportional to 13,306,881.20, 19,960,321.80 and 7,260,263.60

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Solution

The fourth proportional to 13,306,881.20, 19,960,321.80 and 7,260,263.60 is: 10,890,395.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,306,881.20 : 19,960,321.80 = 7,260,263.60 : x
  2. Step 2: Convert to fraction form
    13,306,881.20/19,960,321.80 = 7,260,263.60/x
  3. Step 3: Cross multiply
    13,306,881.20x = 19,960,321.80 × 7,260,263.60
  4. Step 4: Simplify right side
    13,306,881.20x = 144,917,197,808,826.47
  5. Step 5: Solve for x
    x = 144,917,197,808,826.47/13,306,881.20
  6. Step 6: Final answer
    x = 10,890,395.40

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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.