Home / 21,855,095.11-30,163,979.10-13,035,111.76

Finding the Fourth Proportional to 21,855,095.11, 30,163,979.10 and 13,035,111.76

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Solution

The fourth proportional to 21,855,095.11, 30,163,979.10 and 13,035,111.76 is: 17,990,808.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,855,095.11 : 30,163,979.10 = 13,035,111.76 : x
  2. Step 2: Convert to fraction form
    21,855,095.11/30,163,979.10 = 13,035,111.76/x
  3. Step 3: Cross multiply
    21,855,095.11x = 30,163,979.10 × 13,035,111.76
  4. Step 4: Simplify right side
    21,855,095.11x = 393,190,838,694,804.25
  5. Step 5: Solve for x
    x = 393,190,838,694,804.25/21,855,095.11
  6. Step 6: Final answer
    x = 17,990,808.86

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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.