Home / 20,774,580.60-31,161,870.90-11,208,642.60

Finding the Fourth Proportional to 20,774,580.60, 31,161,870.90 and 11,208,642.60

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Solution

The fourth proportional to 20,774,580.60, 31,161,870.90 and 11,208,642.60 is: 16,812,963.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,774,580.60 : 31,161,870.90 = 11,208,642.60 : x
  2. Step 2: Convert to fraction form
    20,774,580.60/31,161,870.90 = 11,208,642.60/x
  3. Step 3: Cross multiply
    20,774,580.60x = 31,161,870.90 × 11,208,642.60
  4. Step 4: Simplify right side
    20,774,580.60x = 349,282,273,665,440.31
  5. Step 5: Solve for x
    x = 349,282,273,665,440.31/20,774,580.60
  6. Step 6: Final answer
    x = 16,812,963.90

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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.