Home / 18,686,090.80-28,029,136.20-5,039,210.80

Finding the Fourth Proportional to 18,686,090.80, 28,029,136.20 and 5,039,210.80

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Solution

The fourth proportional to 18,686,090.80, 28,029,136.20 and 5,039,210.80 is: 7,558,816.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,686,090.80 : 28,029,136.20 = 5,039,210.80 : x
  2. Step 2: Convert to fraction form
    18,686,090.80/28,029,136.20 = 5,039,210.80/x
  3. Step 3: Cross multiply
    18,686,090.80x = 28,029,136.20 × 5,039,210.80
  4. Step 4: Simplify right side
    18,686,090.80x = 141,244,725,853,710.94
  5. Step 5: Solve for x
    x = 141,244,725,853,710.94/18,686,090.80
  6. Step 6: Final answer
    x = 7,558,816.20

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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.