Home / 7,139,581.10-9,852,564.03-3,876,331.40

Finding the Fourth Proportional to 7,139,581.10, 9,852,564.03 and 3,876,331.40

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Solution

The fourth proportional to 7,139,581.10, 9,852,564.03 and 3,876,331.40 is: 5,349,305.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,139,581.10 : 9,852,564.03 = 3,876,331.40 : x
  2. Step 2: Convert to fraction form
    7,139,581.10/9,852,564.03 = 3,876,331.40/x
  3. Step 3: Cross multiply
    7,139,581.10x = 9,852,564.03 × 3,876,331.40
  4. Step 4: Simplify right side
    7,139,581.10x = 38,191,803,319,999.54
  5. Step 5: Solve for x
    x = 38,191,803,319,999.54/7,139,581.10
  6. Step 6: Final answer
    x = 5,349,305.90

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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.