Home / 287,655,303.47-431,790,012.16-123,973,838.51

Finding the Fourth Proportional to 287,655,303.47, 431,790,012.16 and 123,973,838.51

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Solution

The fourth proportional to 287,655,303.47, 431,790,012.16 and 123,973,838.51 is: 186,093,093.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,655,303.47 : 431,790,012.16 = 123,973,838.51 : x
  2. Step 2: Convert to fraction form
    287,655,303.47/431,790,012.16 = 123,973,838.51/x
  3. Step 3: Cross multiply
    287,655,303.47x = 431,790,012.16 × 123,973,838.51
  4. Step 4: Simplify right side
    287,655,303.47x = 53,530,665,235,285,896
  5. Step 5: Solve for x
    x = 53,530,665,235,285,896/287,655,303.47
  6. Step 6: Final answer
    x = 186,093,093.33

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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.