Home / 18,806,384.90-28,218,908.55-7,447,204.10

Finding the Fourth Proportional to 18,806,384.90, 28,218,908.55 and 7,447,204.10

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Solution

The fourth proportional to 18,806,384.90, 28,218,908.55 and 7,447,204.10 is: 11,174,501.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,806,384.90 : 28,218,908.55 = 7,447,204.10 : x
  2. Step 2: Convert to fraction form
    18,806,384.90/28,218,908.55 = 7,447,204.10/x
  3. Step 3: Cross multiply
    18,806,384.90x = 28,218,908.55 × 7,447,204.10
  4. Step 4: Simplify right side
    18,806,384.90x = 210,151,971,451,085.06
  5. Step 5: Solve for x
    x = 210,151,971,451,085.06/18,806,384.90
  6. Step 6: Final answer
    x = 11,174,501.24

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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.