Home / 287,605,182.80-431,410,923.96-83,135,030.48

Finding the Fourth Proportional to 287,605,182.80, 431,410,923.96 and 83,135,030.48

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Solution

The fourth proportional to 287,605,182.80, 431,410,923.96 and 83,135,030.48 is: 124,703,456.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,605,182.80 : 431,410,923.96 = 83,135,030.48 : x
  2. Step 2: Convert to fraction form
    287,605,182.80/431,410,923.96 = 83,135,030.48/x
  3. Step 3: Cross multiply
    287,605,182.80x = 431,410,923.96 × 83,135,030.48
  4. Step 4: Simplify right side
    287,605,182.80x = 35,865,360,312,819,564
  5. Step 5: Solve for x
    x = 35,865,360,312,819,564/287,605,182.80
  6. Step 6: Final answer
    x = 124,703,456.19

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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.