Home / 21,212,648.70-31,805,951.04-8,243,656.50

Finding the Fourth Proportional to 21,212,648.70, 31,805,951.04 and 8,243,656.50

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Solution

The fourth proportional to 21,212,648.70, 31,805,951.04 and 8,243,656.50 is: 12,360,424.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,212,648.70 : 31,805,951.04 = 8,243,656.50 : x
  2. Step 2: Convert to fraction form
    21,212,648.70/31,805,951.04 = 8,243,656.50/x
  3. Step 3: Cross multiply
    21,212,648.70x = 31,805,951.04 × 8,243,656.50
  4. Step 4: Simplify right side
    21,212,648.70x = 262,197,335,029,577.75
  5. Step 5: Solve for x
    x = 262,197,335,029,577.75/21,212,648.70
  6. Step 6: Final answer
    x = 12,360,424.14

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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.