Home / 216,646,289.02-298,971,878.82-123,828,789.76

Finding the Fourth Proportional to 216,646,289.02, 298,971,878.82 and 123,828,789.76

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Solution

The fourth proportional to 216,646,289.02, 298,971,878.82 and 123,828,789.76 is: 170,883,729.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,646,289.02 : 298,971,878.82 = 123,828,789.76 : x
  2. Step 2: Convert to fraction form
    216,646,289.02/298,971,878.82 = 123,828,789.76/x
  3. Step 3: Cross multiply
    216,646,289.02x = 298,971,878.82 × 123,828,789.76
  4. Step 4: Simplify right side
    216,646,289.02x = 37,021,325,926,553,976
  5. Step 5: Solve for x
    x = 37,021,325,926,553,976/216,646,289.02
  6. Step 6: Final answer
    x = 170,883,729.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.