Home / 127,982,994.23-176,621,544.07-72,230,362.13

Finding the Fourth Proportional to 127,982,994.23, 176,621,544.07 and 72,230,362.13

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Solution

The fourth proportional to 127,982,994.23, 176,621,544.07 and 72,230,362.13 is: 99,680,728.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,982,994.23 : 176,621,544.07 = 72,230,362.13 : x
  2. Step 2: Convert to fraction form
    127,982,994.23/176,621,544.07 = 72,230,362.13/x
  3. Step 3: Cross multiply
    127,982,994.23x = 176,621,544.07 × 72,230,362.13
  4. Step 4: Simplify right side
    127,982,994.23x = 12,757,438,087,072,170
  5. Step 5: Solve for x
    x = 12,757,438,087,072,170/127,982,994.23
  6. Step 6: Final answer
    x = 99,680,728.40

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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.