Home / 21,212,646.58-31,805,947.83-8,243,654.40

Finding the Fourth Proportional to 21,212,646.58, 31,805,947.83 and 8,243,654.40

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Solution

The fourth proportional to 21,212,646.58, 31,805,947.83 and 8,243,654.40 is: 12,360,420.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,212,646.58 : 31,805,947.83 = 8,243,654.40 : x
  2. Step 2: Convert to fraction form
    21,212,646.58/31,805,947.83 = 8,243,654.40/x
  3. Step 3: Cross multiply
    21,212,646.58x = 31,805,947.83 × 8,243,654.40
  4. Step 4: Simplify right side
    21,212,646.58x = 262,197,241,774,949.94
  5. Step 5: Solve for x
    x = 262,197,241,774,949.94/21,212,646.58
  6. Step 6: Final answer
    x = 12,360,420.98

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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.