Home / 216,903,882.51-299,216,676.65-138,505,006.35

Finding the Fourth Proportional to 216,903,882.51, 299,216,676.65 and 138,505,006.35

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Solution

The fourth proportional to 216,903,882.51, 299,216,676.65 and 138,505,006.35 is: 191,066,232.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,903,882.51 : 299,216,676.65 = 138,505,006.35 : x
  2. Step 2: Convert to fraction form
    216,903,882.51/299,216,676.65 = 138,505,006.35/x
  3. Step 3: Cross multiply
    216,903,882.51x = 299,216,676.65 × 138,505,006.35
  4. Step 4: Simplify right side
    216,903,882.51x = 41,443,007,698,741,616
  5. Step 5: Solve for x
    x = 41,443,007,698,741,616/216,903,882.51
  6. Step 6: Final answer
    x = 191,066,232.74

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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.