Home / 412,282,713.24-618,407,929.80-139,653,480.24

Finding the Fourth Proportional to 412,282,713.24, 618,407,929.80 and 139,653,480.24

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Solution

The fourth proportional to 412,282,713.24, 618,407,929.80 and 139,653,480.24 is: 209,474,753.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,282,713.24 : 618,407,929.80 = 139,653,480.24 : x
  2. Step 2: Convert to fraction form
    412,282,713.24/618,407,929.80 = 139,653,480.24/x
  3. Step 3: Cross multiply
    412,282,713.24x = 618,407,929.80 × 139,653,480.24
  4. Step 4: Simplify right side
    412,282,713.24x = 86,362,819,604,583,600
  5. Step 5: Solve for x
    x = 86,362,819,604,583,600/412,282,713.24
  6. Step 6: Final answer
    x = 209,474,753.20

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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.