Home / 21,250,070.80-31,882,979.40-20,462,750.80

Finding the Fourth Proportional to 21,250,070.80, 31,882,979.40 and 20,462,750.80

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Solution

The fourth proportional to 21,250,070.80, 31,882,979.40 and 20,462,750.80 is: 30,701,707.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,250,070.80 : 31,882,979.40 = 20,462,750.80 : x
  2. Step 2: Convert to fraction form
    21,250,070.80/31,882,979.40 = 20,462,750.80/x
  3. Step 3: Cross multiply
    21,250,070.80x = 31,882,979.40 × 20,462,750.80
  4. Step 4: Simplify right side
    21,250,070.80x = 652,413,462,223,733.50
  5. Step 5: Solve for x
    x = 652,413,462,223,733.50/21,250,070.80
  6. Step 6: Final answer
    x = 30,701,707.70

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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.