Home / 28,409,019.60-39,204,430.14-15,356,278.70

Finding the Fourth Proportional to 28,409,019.60, 39,204,430.14 and 15,356,278.70

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Solution

The fourth proportional to 28,409,019.60, 39,204,430.14 and 15,356,278.70 is: 21,191,655.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,409,019.60 : 39,204,430.14 = 15,356,278.70 : x
  2. Step 2: Convert to fraction form
    28,409,019.60/39,204,430.14 = 15,356,278.70/x
  3. Step 3: Cross multiply
    28,409,019.60x = 39,204,430.14 × 15,356,278.70
  4. Step 4: Simplify right side
    28,409,019.60x = 602,034,155,513,100.50
  5. Step 5: Solve for x
    x = 602,034,155,513,100.50/28,409,019.60
  6. Step 6: Final answer
    x = 21,191,655.46

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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.