Home / 13,428,740.70-20,143,111.05-11,602,158.30

Finding the Fourth Proportional to 13,428,740.70, 20,143,111.05 and 11,602,158.30

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Solution

The fourth proportional to 13,428,740.70, 20,143,111.05 and 11,602,158.30 is: 17,403,237.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,428,740.70 : 20,143,111.05 = 11,602,158.30 : x
  2. Step 2: Convert to fraction form
    13,428,740.70/20,143,111.05 = 11,602,158.30/x
  3. Step 3: Cross multiply
    13,428,740.70x = 20,143,111.05 × 11,602,158.30
  4. Step 4: Simplify right side
    13,428,740.70x = 233,703,563,056,579.25
  5. Step 5: Solve for x
    x = 233,703,563,056,579.25/13,428,740.70
  6. Step 6: Final answer
    x = 17,403,237.45

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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.