Home / 21,046,506.40-31,569,759.60-9,709,098.40

Finding the Fourth Proportional to 21,046,506.40, 31,569,759.60 and 9,709,098.40

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Solution

The fourth proportional to 21,046,506.40, 31,569,759.60 and 9,709,098.40 is: 14,563,647.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,046,506.40 : 31,569,759.60 = 9,709,098.40 : x
  2. Step 2: Convert to fraction form
    21,046,506.40/31,569,759.60 = 9,709,098.40/x
  3. Step 3: Cross multiply
    21,046,506.40x = 31,569,759.60 × 9,709,098.40
  4. Step 4: Simplify right side
    21,046,506.40x = 306,513,902,420,744.69
  5. Step 5: Solve for x
    x = 306,513,902,420,744.69/21,046,506.40
  6. Step 6: Final answer
    x = 14,563,647.60

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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.