Home / 21,957,995.90-30,301,664.10-12,168,420.14

Finding the Fourth Proportional to 21,957,995.90, 30,301,664.10 and 12,168,420.14

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Solution

The fourth proportional to 21,957,995.90, 30,301,664.10 and 12,168,420.14 is: 16,792,214.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,957,995.90 : 30,301,664.10 = 12,168,420.14 : x
  2. Step 2: Convert to fraction form
    21,957,995.90/30,301,664.10 = 12,168,420.14/x
  3. Step 3: Cross multiply
    21,957,995.90x = 30,301,664.10 × 12,168,420.14
  4. Step 4: Simplify right side
    21,957,995.90x = 368,723,379,709,955
  5. Step 5: Solve for x
    x = 368,723,379,709,955/21,957,995.90
  6. Step 6: Final answer
    x = 16,792,214.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.