Home / 157,176,136-216,917,738.40-91,986,091.84

Finding the Fourth Proportional to 157,176,136, 216,917,738.40 and 91,986,091.84

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Solution

The fourth proportional to 157,176,136, 216,917,738.40 and 91,986,091.84 is: 126,949,392.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,176,136 : 216,917,738.40 = 91,986,091.84 : x
  2. Step 2: Convert to fraction form
    157,176,136/216,917,738.40 = 91,986,091.84/x
  3. Step 3: Cross multiply
    157,176,136x = 216,917,738.40 × 91,986,091.84
  4. Step 4: Simplify right side
    157,176,136x = 19,953,415,006,187,496
  5. Step 5: Solve for x
    x = 19,953,415,006,187,496/157,176,136
  6. Step 6: Final answer
    x = 126,949,392.66

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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.