Home / 28,458,501.12-39,272,686.29-15,405,756.54

Finding the Fourth Proportional to 28,458,501.12, 39,272,686.29 and 15,405,756.54

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Solution

The fourth proportional to 28,458,501.12, 39,272,686.29 and 15,405,756.54 is: 21,259,919.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,458,501.12 : 39,272,686.29 = 15,405,756.54 : x
  2. Step 2: Convert to fraction form
    28,458,501.12/39,272,686.29 = 15,405,756.54/x
  3. Step 3: Cross multiply
    28,458,501.12x = 39,272,686.29 × 15,405,756.54
  4. Step 4: Simplify right side
    28,458,501.12x = 605,025,443,655,535.75
  5. Step 5: Solve for x
    x = 605,025,443,655,535.75/28,458,501.12
  6. Step 6: Final answer
    x = 21,259,919.53

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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.