Home / 13,805,622.78-20,708,434.17-4,221,001.32

Finding the Fourth Proportional to 13,805,622.78, 20,708,434.17 and 4,221,001.32

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Solution

The fourth proportional to 13,805,622.78, 20,708,434.17 and 4,221,001.32 is: 6,331,501.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,805,622.78 : 20,708,434.17 = 4,221,001.32 : x
  2. Step 2: Convert to fraction form
    13,805,622.78/20,708,434.17 = 4,221,001.32/x
  3. Step 3: Cross multiply
    13,805,622.78x = 20,708,434.17 × 4,221,001.32
  4. Step 4: Simplify right side
    13,805,622.78x = 87,410,327,966,703.12
  5. Step 5: Solve for x
    x = 87,410,327,966,703.12/13,805,622.78
  6. Step 6: Final answer
    x = 6,331,501.98

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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.