Home / 10,528,145.10-15,778,458.38-7,620,029.84

Finding the Fourth Proportional to 10,528,145.10, 15,778,458.38 and 7,620,029.84

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Solution

The fourth proportional to 10,528,145.10, 15,778,458.38 and 7,620,029.84 is: 11,420,086.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,528,145.10 : 15,778,458.38 = 7,620,029.84 : x
  2. Step 2: Convert to fraction form
    10,528,145.10/15,778,458.38 = 7,620,029.84/x
  3. Step 3: Cross multiply
    10,528,145.10x = 15,778,458.38 × 7,620,029.84
  4. Step 4: Simplify right side
    10,528,145.10x = 120,232,323,743,294.28
  5. Step 5: Solve for x
    x = 120,232,323,743,294.28/10,528,145.10
  6. Step 6: Final answer
    x = 11,420,086.12

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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.