Home / 12,528,095.90-18,792,143.85-11,881,132.70

Finding the Fourth Proportional to 12,528,095.90, 18,792,143.85 and 11,881,132.70

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Solution

The fourth proportional to 12,528,095.90, 18,792,143.85 and 11,881,132.70 is: 17,821,699.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528,095.90 : 18,792,143.85 = 11,881,132.70 : x
  2. Step 2: Convert to fraction form
    12,528,095.90/18,792,143.85 = 11,881,132.70/x
  3. Step 3: Cross multiply
    12,528,095.90x = 18,792,143.85 × 11,881,132.70
  4. Step 4: Simplify right side
    12,528,095.90x = 223,271,954,799,338.91
  5. Step 5: Solve for x
    x = 223,271,954,799,338.91/12,528,095.90
  6. Step 6: Final answer
    x = 17,821,699.05

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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.