Home / 13,831,785-19,088,060.13-7,720,213.50

Finding the Fourth Proportional to 13,831,785, 19,088,060.13 and 7,720,213.50

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Solution

The fourth proportional to 13,831,785, 19,088,060.13 and 7,720,213.50 is: 10,654,004.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,831,785 : 19,088,060.13 = 7,720,213.50 : x
  2. Step 2: Convert to fraction form
    13,831,785/19,088,060.13 = 7,720,213.50/x
  3. Step 3: Cross multiply
    13,831,785x = 19,088,060.13 × 7,720,213.50
  4. Step 4: Simplify right side
    13,831,785x = 147,363,899,504,437.75
  5. Step 5: Solve for x
    x = 147,363,899,504,437.75/13,831,785
  6. Step 6: Final answer
    x = 10,654,004.49

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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.