Home / 268,921,178.23-371,111,994.58-155,912,632.04

Finding the Fourth Proportional to 268,921,178.23, 371,111,994.58 and 155,912,632.04

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Solution

The fourth proportional to 268,921,178.23, 371,111,994.58 and 155,912,632.04 is: 215,159,877.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,921,178.23 : 371,111,994.58 = 155,912,632.04 : x
  2. Step 2: Convert to fraction form
    268,921,178.23/371,111,994.58 = 155,912,632.04/x
  3. Step 3: Cross multiply
    268,921,178.23x = 371,111,994.58 × 155,912,632.04
  4. Step 4: Simplify right side
    268,921,178.23x = 57,861,047,854,726,448
  5. Step 5: Solve for x
    x = 57,861,047,854,726,448/268,921,178.23
  6. Step 6: Final answer
    x = 215,159,877.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.