Home / 13,637,290.74-18,819,860.20-7,442,734.76

Finding the Fourth Proportional to 13,637,290.74, 18,819,860.20 and 7,442,734.76

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Solution

The fourth proportional to 13,637,290.74, 18,819,860.20 and 7,442,734.76 is: 10,271,191.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,637,290.74 : 18,819,860.20 = 7,442,734.76 : x
  2. Step 2: Convert to fraction form
    13,637,290.74/18,819,860.20 = 7,442,734.76/x
  3. Step 3: Cross multiply
    13,637,290.74x = 18,819,860.20 × 7,442,734.76
  4. Step 4: Simplify right side
    13,637,290.74x = 140,071,227,688,880.55
  5. Step 5: Solve for x
    x = 140,071,227,688,880.55/13,637,290.74
  6. Step 6: Final answer
    x = 10,271,191.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.