Home / 472,826,424.80-709,239,637.20-291,427,896.80

Finding the Fourth Proportional to 472,826,424.80, 709,239,637.20 and 291,427,896.80

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Solution

The fourth proportional to 472,826,424.80, 709,239,637.20 and 291,427,896.80 is: 437,141,845.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,826,424.80 : 709,239,637.20 = 291,427,896.80 : x
  2. Step 2: Convert to fraction form
    472,826,424.80/709,239,637.20 = 291,427,896.80/x
  3. Step 3: Cross multiply
    472,826,424.80x = 709,239,637.20 × 291,427,896.80
  4. Step 4: Simplify right side
    472,826,424.80x = 206,692,215,796,391,072
  5. Step 5: Solve for x
    x = 206,692,215,796,391,072/472,826,424.80
  6. Step 6: Final answer
    x = 437,141,845.20

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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.