Home / 232,598,439.94-320,987,969.89-128,180,257.78

Finding the Fourth Proportional to 232,598,439.94, 320,987,969.89 and 128,180,257.78

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Solution

The fourth proportional to 232,598,439.94, 320,987,969.89 and 128,180,257.78 is: 176,889,925.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,598,439.94 : 320,987,969.89 = 128,180,257.78 : x
  2. Step 2: Convert to fraction form
    232,598,439.94/320,987,969.89 = 128,180,257.78/x
  3. Step 3: Cross multiply
    232,598,439.94x = 320,987,969.89 × 128,180,257.78
  4. Step 4: Simplify right side
    232,598,439.94x = 41,144,320,724,779,080
  5. Step 5: Solve for x
    x = 41,144,320,724,779,080/232,598,439.94
  6. Step 6: Final answer
    x = 176,889,925.55

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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.