Home / 30,873,480.70-42,608,020-17,126,873.50

Finding the Fourth Proportional to 30,873,480.70, 42,608,020 and 17,126,873.50

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Solution

The fourth proportional to 30,873,480.70, 42,608,020 and 17,126,873.50 is: 23,636,536.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,873,480.70 : 42,608,020 = 17,126,873.50 : x
  2. Step 2: Convert to fraction form
    30,873,480.70/42,608,020 = 17,126,873.50/x
  3. Step 3: Cross multiply
    30,873,480.70x = 42,608,020 × 17,126,873.50
  4. Step 4: Simplify right side
    30,873,480.70x = 729,742,168,625,470
  5. Step 5: Solve for x
    x = 729,742,168,625,470/30,873,480.70
  6. Step 6: Final answer
    x = 23,636,536.99

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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.