Home / 18,958,082.40-28,389,009.60-10,428,782.40

Finding the Fourth Proportional to 18,958,082.40, 28,389,009.60 and 10,428,782.40

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Solution

The fourth proportional to 18,958,082.40, 28,389,009.60 and 10,428,782.40 is: 15,616,706.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,958,082.40 : 28,389,009.60 = 10,428,782.40 : x
  2. Step 2: Convert to fraction form
    18,958,082.40/28,389,009.60 = 10,428,782.40/x
  3. Step 3: Cross multiply
    18,958,082.40x = 28,389,009.60 × 10,428,782.40
  4. Step 4: Simplify right side
    18,958,082.40x = 296,062,803,669,911.06
  5. Step 5: Solve for x
    x = 296,062,803,669,911.06/18,958,082.40
  6. Step 6: Final answer
    x = 15,616,706.24

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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.