Home / 11,121,784.40-16,661,681.40-5,712,021.20

Finding the Fourth Proportional to 11,121,784.40, 16,661,681.40 and 5,712,021.20

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Solution

The fourth proportional to 11,121,784.40, 16,661,681.40 and 5,712,021.20 is: 8,557,248.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,121,784.40 : 16,661,681.40 = 5,712,021.20 : x
  2. Step 2: Convert to fraction form
    11,121,784.40/16,661,681.40 = 5,712,021.20/x
  3. Step 3: Cross multiply
    11,121,784.40x = 16,661,681.40 × 5,712,021.20
  4. Step 4: Simplify right side
    11,121,784.40x = 95,171,877,384,445.69
  5. Step 5: Solve for x
    x = 95,171,877,384,445.69/11,121,784.40
  6. Step 6: Final answer
    x = 8,557,248.91

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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.