Home / 321,941,330.40-482,974,981.20-137,708,450.40

Finding the Fourth Proportional to 321,941,330.40, 482,974,981.20 and 137,708,450.40

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Solution

The fourth proportional to 321,941,330.40, 482,974,981.20 and 137,708,450.40 is: 206,589,617.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,941,330.40 : 482,974,981.20 = 137,708,450.40 : x
  2. Step 2: Convert to fraction form
    321,941,330.40/482,974,981.20 = 137,708,450.40/x
  3. Step 3: Cross multiply
    321,941,330.40x = 482,974,981.20 × 137,708,450.40
  4. Step 4: Simplify right side
    321,941,330.40x = 66,509,736,243,021,136
  5. Step 5: Solve for x
    x = 66,509,736,243,021,136/321,941,330.40
  6. Step 6: Final answer
    x = 206,589,617.31

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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.