Home / 13,141,154.70-18,134,600.40-7,340,021.10

Finding the Fourth Proportional to 13,141,154.70, 18,134,600.40 and 7,340,021.10

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Solution

The fourth proportional to 13,141,154.70, 18,134,600.40 and 7,340,021.10 is: 10,129,121.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,141,154.70 : 18,134,600.40 = 7,340,021.10 : x
  2. Step 2: Convert to fraction form
    13,141,154.70/18,134,600.40 = 7,340,021.10/x
  3. Step 3: Cross multiply
    13,141,154.70x = 18,134,600.40 × 7,340,021.10
  4. Step 4: Simplify right side
    13,141,154.70x = 133,108,349,576,068.42
  5. Step 5: Solve for x
    x = 133,108,349,576,068.42/13,141,154.70
  6. Step 6: Final answer
    x = 10,129,121.27

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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.