Home / 81,206,141.52-121,807,188.09-23,698,910.91

Finding the Fourth Proportional to 81,206,141.52, 121,807,188.09 and 23,698,910.91

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Solution

The fourth proportional to 81,206,141.52, 121,807,188.09 and 23,698,910.91 is: 35,547,775.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,206,141.52 : 121,807,188.09 = 23,698,910.91 : x
  2. Step 2: Convert to fraction form
    81,206,141.52/121,807,188.09 = 23,698,910.91/x
  3. Step 3: Cross multiply
    81,206,141.52x = 121,807,188.09 × 23,698,910.91
  4. Step 4: Simplify right side
    81,206,141.52x = 2,886,697,698,742,523
  5. Step 5: Solve for x
    x = 2,886,697,698,742,523/81,206,141.52
  6. Step 6: Final answer
    x = 35,547,775.63

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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.