Home / 20,776,655.48-28,671,284.04-11,357,027.78

Finding the Fourth Proportional to 20,776,655.48, 28,671,284.04 and 11,357,027.78

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Solution

The fourth proportional to 20,776,655.48, 28,671,284.04 and 11,357,027.78 is: 15,672,424.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,776,655.48 : 28,671,284.04 = 11,357,027.78 : x
  2. Step 2: Convert to fraction form
    20,776,655.48/28,671,284.04 = 11,357,027.78/x
  3. Step 3: Cross multiply
    20,776,655.48x = 28,671,284.04 × 11,357,027.78
  4. Step 4: Simplify right side
    20,776,655.48x = 325,620,569,187,194.19
  5. Step 5: Solve for x
    x = 325,620,569,187,194.19/20,776,655.48
  6. Step 6: Final answer
    x = 15,672,424.74

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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.