Home / 158,477,780.25-218,606,681.25-99,647,305.29

Finding the Fourth Proportional to 158,477,780.25, 218,606,681.25 and 99,647,305.29

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Solution

The fourth proportional to 158,477,780.25, 218,606,681.25 and 99,647,305.29 is: 137,455,021.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,477,780.25 : 218,606,681.25 = 99,647,305.29 : x
  2. Step 2: Convert to fraction form
    158,477,780.25/218,606,681.25 = 99,647,305.29/x
  3. Step 3: Cross multiply
    158,477,780.25x = 218,606,681.25 × 99,647,305.29
  4. Step 4: Simplify right side
    158,477,780.25x = 21,783,566,704,952,472
  5. Step 5: Solve for x
    x = 21,783,566,704,952,472/158,477,780.25
  6. Step 6: Final answer
    x = 137,455,021.58

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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.