Home / 525,833,708.95-725,667,719.92-287,673,368.46

Finding the Fourth Proportional to 525,833,708.95, 725,667,719.92 and 287,673,368.46

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Solution

The fourth proportional to 525,833,708.95, 725,667,719.92 and 287,673,368.46 is: 396,998,659.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,833,708.95 : 725,667,719.92 = 287,673,368.46 : x
  2. Step 2: Convert to fraction form
    525,833,708.95/725,667,719.92 = 287,673,368.46/x
  3. Step 3: Cross multiply
    525,833,708.95x = 725,667,719.92 × 287,673,368.46
  4. Step 4: Simplify right side
    525,833,708.95x = 208,755,277,372,074,208
  5. Step 5: Solve for x
    x = 208,755,277,372,074,208/525,833,708.95
  6. Step 6: Final answer
    x = 396,998,659.12

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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.