Home / 12,528,098.40-18,792,147.60-11,881,135.20

Finding the Fourth Proportional to 12,528,098.40, 18,792,147.60 and 11,881,135.20

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Solution

The fourth proportional to 12,528,098.40, 18,792,147.60 and 11,881,135.20 is: 17,821,702.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528,098.40 : 18,792,147.60 = 11,881,135.20 : x
  2. Step 2: Convert to fraction form
    12,528,098.40/18,792,147.60 = 11,881,135.20/x
  3. Step 3: Cross multiply
    12,528,098.40x = 18,792,147.60 × 11,881,135.20
  4. Step 4: Simplify right side
    12,528,098.40x = 223,272,046,333,955.53
  5. Step 5: Solve for x
    x = 223,272,046,333,955.53/12,528,098.40
  6. Step 6: Final answer
    x = 17,821,702.80

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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.