Home / 217,242,720.89-299,792,863.78-118,123,505.07

Finding the Fourth Proportional to 217,242,720.89, 299,792,863.78 and 118,123,505.07

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Solution

The fourth proportional to 217,242,720.89, 299,792,863.78 and 118,123,505.07 is: 163,009,300.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,242,720.89 : 299,792,863.78 = 118,123,505.07 : x
  2. Step 2: Convert to fraction form
    217,242,720.89/299,792,863.78 = 118,123,505.07/x
  3. Step 3: Cross multiply
    217,242,720.89x = 299,792,863.78 × 118,123,505.07
  4. Step 4: Simplify right side
    217,242,720.89x = 35,412,583,864,666,644
  5. Step 5: Solve for x
    x = 35,412,583,864,666,644/217,242,720.89
  6. Step 6: Final answer
    x = 163,009,300.01

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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.