Home / 30,541,053.62-42,147,526.26-18,620,555.18

Finding the Fourth Proportional to 30,541,053.62, 42,147,526.26 and 18,620,555.18

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Solution

The fourth proportional to 30,541,053.62, 42,147,526.26 and 18,620,555.18 is: 25,696,897.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,541,053.62 : 42,147,526.26 = 18,620,555.18 : x
  2. Step 2: Convert to fraction form
    30,541,053.62/42,147,526.26 = 18,620,555.18/x
  3. Step 3: Cross multiply
    30,541,053.62x = 42,147,526.26 × 18,620,555.18
  4. Step 4: Simplify right side
    30,541,053.62x = 784,810,338,424,829
  5. Step 5: Solve for x
    x = 784,810,338,424,829/30,541,053.62
  6. Step 6: Final answer
    x = 25,696,897.96

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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.