Home / 20,881,434.88-28,816,026.56-11,713,880.80

Finding the Fourth Proportional to 20,881,434.88, 28,816,026.56 and 11,713,880.80

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Solution

The fourth proportional to 20,881,434.88, 28,816,026.56 and 11,713,880.80 is: 16,164,957.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,881,434.88 : 28,816,026.56 = 11,713,880.80 : x
  2. Step 2: Convert to fraction form
    20,881,434.88/28,816,026.56 = 11,713,880.80/x
  3. Step 3: Cross multiply
    20,881,434.88x = 28,816,026.56 × 11,713,880.80
  4. Step 4: Simplify right side
    20,881,434.88x = 337,547,500,138,678.62
  5. Step 5: Solve for x
    x = 337,547,500,138,678.62/20,881,434.88
  6. Step 6: Final answer
    x = 16,164,957.16

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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.