Home / 203,974,938.40-305,962,407.60-163,664,154.40

Finding the Fourth Proportional to 203,974,938.40, 305,962,407.60 and 163,664,154.40

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Solution

The fourth proportional to 203,974,938.40, 305,962,407.60 and 163,664,154.40 is: 245,496,231.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,974,938.40 : 305,962,407.60 = 163,664,154.40 : x
  2. Step 2: Convert to fraction form
    203,974,938.40/305,962,407.60 = 163,664,154.40/x
  3. Step 3: Cross multiply
    203,974,938.40x = 305,962,407.60 × 163,664,154.40
  4. Step 4: Simplify right side
    203,974,938.40x = 50,075,078,718,042,136
  5. Step 5: Solve for x
    x = 50,075,078,718,042,136/203,974,938.40
  6. Step 6: Final answer
    x = 245,496,231.60

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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.