Home / 21,145,063.80-31,717,595.70-20,053,313.40

Finding the Fourth Proportional to 21,145,063.80, 31,717,595.70 and 20,053,313.40

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Solution

The fourth proportional to 21,145,063.80, 31,717,595.70 and 20,053,313.40 is: 30,079,970.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,145,063.80 : 31,717,595.70 = 20,053,313.40 : x
  2. Step 2: Convert to fraction form
    21,145,063.80/31,717,595.70 = 20,053,313.40/x
  3. Step 3: Cross multiply
    21,145,063.80x = 31,717,595.70 × 20,053,313.40
  4. Step 4: Simplify right side
    21,145,063.80x = 636,042,886,866,592.38
  5. Step 5: Solve for x
    x = 636,042,886,866,592.38/21,145,063.80
  6. Step 6: Final answer
    x = 30,079,970.10

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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.