Home / 425,150,908.80-637,726,363.20-388,871,203.20

Finding the Fourth Proportional to 425,150,908.80, 637,726,363.20 and 388,871,203.20

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Solution

The fourth proportional to 425,150,908.80, 637,726,363.20 and 388,871,203.20 is: 583,306,804.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,150,908.80 : 637,726,363.20 = 388,871,203.20 : x
  2. Step 2: Convert to fraction form
    425,150,908.80/637,726,363.20 = 388,871,203.20/x
  3. Step 3: Cross multiply
    425,150,908.80x = 637,726,363.20 × 388,871,203.20
  4. Step 4: Simplify right side
    425,150,908.80x = 247,993,418,169,944,224
  5. Step 5: Solve for x
    x = 247,993,418,169,944,224/425,150,908.80
  6. Step 6: Final answer
    x = 583,306,804.80

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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.