Home / 28,158,322.11-42,221,039.65-11,975,943.66

Finding the Fourth Proportional to 28,158,322.11, 42,221,039.65 and 11,975,943.66

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Solution

The fourth proportional to 28,158,322.11, 42,221,039.65 and 11,975,943.66 is: 17,956,921.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,158,322.11 : 42,221,039.65 = 11,975,943.66 : x
  2. Step 2: Convert to fraction form
    28,158,322.11/42,221,039.65 = 11,975,943.66/x
  3. Step 3: Cross multiply
    28,158,322.11x = 42,221,039.65 × 11,975,943.66
  4. Step 4: Simplify right side
    28,158,322.11x = 505,636,791,994,122.06
  5. Step 5: Solve for x
    x = 505,636,791,994,122.06/28,158,322.11
  6. Step 6: Final answer
    x = 17,956,921.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.