Home / 64,301,904.80-96,433,618.80-21,163,145.12

Finding the Fourth Proportional to 64,301,904.80, 96,433,618.80 and 21,163,145.12

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Solution

The fourth proportional to 64,301,904.80, 96,433,618.80 and 21,163,145.12 is: 31,738,385.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,301,904.80 : 96,433,618.80 = 21,163,145.12 : x
  2. Step 2: Convert to fraction form
    64,301,904.80/96,433,618.80 = 21,163,145.12/x
  3. Step 3: Cross multiply
    64,301,904.80x = 96,433,618.80 × 21,163,145.12
  4. Step 4: Simplify right side
    64,301,904.80x = 2,040,838,669,111,160.25
  5. Step 5: Solve for x
    x = 2,040,838,669,111,160.25/64,301,904.80
  6. Step 6: Final answer
    x = 31,738,385.91

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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.