Home / 18,792,133.60-28,188,200.40-13,312,386.40

Finding the Fourth Proportional to 18,792,133.60, 28,188,200.40 and 13,312,386.40

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Solution

The fourth proportional to 18,792,133.60, 28,188,200.40 and 13,312,386.40 is: 19,968,579.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,792,133.60 : 28,188,200.40 = 13,312,386.40 : x
  2. Step 2: Convert to fraction form
    18,792,133.60/28,188,200.40 = 13,312,386.40/x
  3. Step 3: Cross multiply
    18,792,133.60x = 28,188,200.40 × 13,312,386.40
  4. Step 4: Simplify right side
    18,792,133.60x = 375,252,215,645,434.56
  5. Step 5: Solve for x
    x = 375,252,215,645,434.56/18,792,133.60
  6. Step 6: Final answer
    x = 19,968,579.60

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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.