Home / 216,646,289.64-298,971,879.70-123,828,790.38

Finding the Fourth Proportional to 216,646,289.64, 298,971,879.70 and 123,828,790.38

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Solution

The fourth proportional to 216,646,289.64, 298,971,879.70 and 123,828,790.38 is: 170,883,730.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,646,289.64 : 298,971,879.70 = 123,828,790.38 : x
  2. Step 2: Convert to fraction form
    216,646,289.64/298,971,879.70 = 123,828,790.38/x
  3. Step 3: Cross multiply
    216,646,289.64x = 298,971,879.70 × 123,828,790.38
  4. Step 4: Simplify right side
    216,646,289.64x = 37,021,326,220,885,872
  5. Step 5: Solve for x
    x = 37,021,326,220,885,872/216,646,289.64
  6. Step 6: Final answer
    x = 170,883,730.72

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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.