Home / 28,158,323.11-42,221,041.15-11,975,944.66

Finding the Fourth Proportional to 28,158,323.11, 42,221,041.15 and 11,975,944.66

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Solution

The fourth proportional to 28,158,323.11, 42,221,041.15 and 11,975,944.66 is: 17,956,923.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,158,323.11 : 42,221,041.15 = 11,975,944.66 : x
  2. Step 2: Convert to fraction form
    28,158,323.11/42,221,041.15 = 11,975,944.66/x
  3. Step 3: Cross multiply
    28,158,323.11x = 42,221,041.15 × 11,975,944.66
  4. Step 4: Simplify right side
    28,158,323.11x = 505,636,852,299,982.75
  5. Step 5: Solve for x
    x = 505,636,852,299,982.75/28,158,323.11
  6. Step 6: Final answer
    x = 17,956,923.44

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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.