Home / 20,881,143.54-28,809,521.01-12,173,151.06

Finding the Fourth Proportional to 20,881,143.54, 28,809,521.01 and 12,173,151.06

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Solution

The fourth proportional to 20,881,143.54, 28,809,521.01 and 12,173,151.06 is: 16,795,184.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,881,143.54 : 28,809,521.01 = 12,173,151.06 : x
  2. Step 2: Convert to fraction form
    20,881,143.54/28,809,521.01 = 12,173,151.06/x
  3. Step 3: Cross multiply
    20,881,143.54x = 28,809,521.01 × 12,173,151.06
  4. Step 4: Simplify right side
    20,881,143.54x = 350,702,651,220,973.81
  5. Step 5: Solve for x
    x = 350,702,651,220,973.81/20,881,143.54
  6. Step 6: Final answer
    x = 16,795,184.16

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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.