Home / 680,857,326.72-1,021,429,465.92-220,759,617.60

Finding the Fourth Proportional to 680,857,326.72, 1,021,429,465.92 and 220,759,617.60

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Solution

The fourth proportional to 680,857,326.72, 1,021,429,465.92 and 220,759,617.60 is: 331,185,946.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,857,326.72 : 1,021,429,465.92 = 220,759,617.60 : x
  2. Step 2: Convert to fraction form
    680,857,326.72/1,021,429,465.92 = 220,759,617.60/x
  3. Step 3: Cross multiply
    680,857,326.72x = 1,021,429,465.92 × 220,759,617.60
  4. Step 4: Simplify right side
    680,857,326.72x = 225,490,378,301,871,424
  5. Step 5: Solve for x
    x = 225,490,378,301,871,424/680,857,326.72
  6. Step 6: Final answer
    x = 331,185,946.68

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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.