Home / 28,728,879.64-39,646,810.86-15,676,854.73

Finding the Fourth Proportional to 28,728,879.64, 39,646,810.86 and 15,676,854.73

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Solution

The fourth proportional to 28,728,879.64, 39,646,810.86 and 15,676,854.73 is: 21,634,581.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,728,879.64 : 39,646,810.86 = 15,676,854.73 : x
  2. Step 2: Convert to fraction form
    28,728,879.64/39,646,810.86 = 15,676,854.73/x
  3. Step 3: Cross multiply
    28,728,879.64x = 39,646,810.86 × 15,676,854.73
  4. Step 4: Simplify right side
    28,728,879.64x = 621,537,294,360,006.38
  5. Step 5: Solve for x
    x = 621,537,294,360,006.38/28,728,879.64
  6. Step 6: Final answer
    x = 21,634,581.72

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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.