Home / 20,334,699.93-28,051,509.67-12,984,805.29

Finding the Fourth Proportional to 20,334,699.93, 28,051,509.67 and 12,984,805.29

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Solution

The fourth proportional to 20,334,699.93, 28,051,509.67 and 12,984,805.29 is: 17,912,405.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,334,699.93 : 28,051,509.67 = 12,984,805.29 : x
  2. Step 2: Convert to fraction form
    20,334,699.93/28,051,509.67 = 12,984,805.29/x
  3. Step 3: Cross multiply
    20,334,699.93x = 28,051,509.67 × 12,984,805.29
  4. Step 4: Simplify right side
    20,334,699.93x = 364,243,391,155,502.12
  5. Step 5: Solve for x
    x = 364,243,391,155,502.12/20,334,699.93
  6. Step 6: Final answer
    x = 17,912,405.51

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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.