Home / 20,816,721.48-28,730,080.50-11,994,483.08

Finding the Fourth Proportional to 20,816,721.48, 28,730,080.50 and 11,994,483.08

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Solution

The fourth proportional to 20,816,721.48, 28,730,080.50 and 11,994,483.08 is: 16,554,118.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,816,721.48 : 28,730,080.50 = 11,994,483.08 : x
  2. Step 2: Convert to fraction form
    20,816,721.48/28,730,080.50 = 11,994,483.08/x
  3. Step 3: Cross multiply
    20,816,721.48x = 28,730,080.50 × 11,994,483.08
  4. Step 4: Simplify right side
    20,816,721.48x = 344,602,464,444,287.94
  5. Step 5: Solve for x
    x = 344,602,464,444,287.94/20,816,721.48
  6. Step 6: Final answer
    x = 16,554,118.03

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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.