Home / 5,210,918.40-7,816,118.40-2,686,828.80

Finding the Fourth Proportional to 5,210,918.40, 7,816,118.40 and 2,686,828.80

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Solution

The fourth proportional to 5,210,918.40, 7,816,118.40 and 2,686,828.80 is: 4,030,109.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,210,918.40 : 7,816,118.40 = 2,686,828.80 : x
  2. Step 2: Convert to fraction form
    5,210,918.40/7,816,118.40 = 2,686,828.80/x
  3. Step 3: Cross multiply
    5,210,918.40x = 7,816,118.40 × 2,686,828.80
  4. Step 4: Simplify right side
    5,210,918.40x = 21,000,572,021,329.92
  5. Step 5: Solve for x
    x = 21,000,572,021,329.92/5,210,918.40
  6. Step 6: Final answer
    x = 4,030,109.55

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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.