Home / 128,889,012.26-177,853,432.59-73,116,663.14

Finding the Fourth Proportional to 128,889,012.26, 177,853,432.59 and 73,116,663.14

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Solution

The fourth proportional to 128,889,012.26, 177,853,432.59 and 73,116,663.14 is: 100,893,391.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,889,012.26 : 177,853,432.59 = 73,116,663.14 : x
  2. Step 2: Convert to fraction form
    128,889,012.26/177,853,432.59 = 73,116,663.14/x
  3. Step 3: Cross multiply
    128,889,012.26x = 177,853,432.59 × 73,116,663.14
  4. Step 4: Simplify right side
    128,889,012.26x = 13,004,049,518,975,728
  5. Step 5: Solve for x
    x = 13,004,049,518,975,728/128,889,012.26
  6. Step 6: Final answer
    x = 100,893,391.07

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