Home / 13,766,870.76-18,998,297.40-7,655,168.04

Finding the Fourth Proportional to 13,766,870.76, 18,998,297.40 and 7,655,168.04

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Solution

The fourth proportional to 13,766,870.76, 18,998,297.40 and 7,655,168.04 is: 10,564,140.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,766,870.76 : 18,998,297.40 = 7,655,168.04 : x
  2. Step 2: Convert to fraction form
    13,766,870.76/18,998,297.40 = 7,655,168.04/x
  3. Step 3: Cross multiply
    13,766,870.76x = 18,998,297.40 × 7,655,168.04
  4. Step 4: Simplify right side
    13,766,870.76x = 145,435,159,070,895.09
  5. Step 5: Solve for x
    x = 145,435,159,070,895.09/13,766,870.76
  6. Step 6: Final answer
    x = 10,564,140.65

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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.