Home / 43,031,319.81-64,540,673.54-21,165,829.89

Finding the Fourth Proportional to 43,031,319.81, 64,540,673.54 and 21,165,829.89

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Solution

The fourth proportional to 43,031,319.81, 64,540,673.54 and 21,165,829.89 is: 31,745,643.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,031,319.81 : 64,540,673.54 = 21,165,829.89 : x
  2. Step 2: Convert to fraction form
    43,031,319.81/64,540,673.54 = 21,165,829.89/x
  3. Step 3: Cross multiply
    43,031,319.81x = 64,540,673.54 × 21,165,829.89
  4. Step 4: Simplify right side
    43,031,319.81x = 1,366,056,917,228,220.50
  5. Step 5: Solve for x
    x = 1,366,056,917,228,220.50/43,031,319.81
  6. Step 6: Final answer
    x = 31,745,643.02

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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.