Home / 28,686,405.96-39,588,643.85-16,131,412.22

Finding the Fourth Proportional to 28,686,405.96, 39,588,643.85 and 16,131,412.22

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Solution

The fourth proportional to 28,686,405.96, 39,588,643.85 and 16,131,412.22 is: 22,262,138.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,686,405.96 : 39,588,643.85 = 16,131,412.22 : x
  2. Step 2: Convert to fraction form
    28,686,405.96/39,588,643.85 = 16,131,412.22/x
  3. Step 3: Cross multiply
    28,686,405.96x = 39,588,643.85 × 16,131,412.22
  4. Step 4: Simplify right side
    28,686,405.96x = 638,620,732,896,517.50
  5. Step 5: Solve for x
    x = 638,620,732,896,517.50/28,686,405.96
  6. Step 6: Final answer
    x = 22,262,138.16

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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.