Home / 7,977,521.76-11,970,019.68-3,931,804.14

Finding the Fourth Proportional to 7,977,521.76, 11,970,019.68 and 3,931,804.14

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Solution

The fourth proportional to 7,977,521.76, 11,970,019.68 and 3,931,804.14 is: 5,899,548.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,977,521.76 : 11,970,019.68 = 3,931,804.14 : x
  2. Step 2: Convert to fraction form
    7,977,521.76/11,970,019.68 = 3,931,804.14/x
  3. Step 3: Cross multiply
    7,977,521.76x = 11,970,019.68 × 3,931,804.14
  4. Step 4: Simplify right side
    7,977,521.76x = 47,063,772,933,705.48
  5. Step 5: Solve for x
    x = 47,063,772,933,705.48/7,977,521.76
  6. Step 6: Final answer
    x = 5,899,548.05

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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.