Home / 28,728,877.64-39,646,808.10-15,676,852.73

Finding the Fourth Proportional to 28,728,877.64, 39,646,808.10 and 15,676,852.73

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Solution

The fourth proportional to 28,728,877.64, 39,646,808.10 and 15,676,852.73 is: 21,634,578.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,728,877.64 : 39,646,808.10 = 15,676,852.73 : x
  2. Step 2: Convert to fraction form
    28,728,877.64/39,646,808.10 = 15,676,852.73/x
  3. Step 3: Cross multiply
    28,728,877.64x = 39,646,808.10 × 15,676,852.73
  4. Step 4: Simplify right side
    28,728,877.64x = 621,537,171,600,037.12
  5. Step 5: Solve for x
    x = 621,537,171,600,037.12/28,728,877.64
  6. Step 6: Final answer
    x = 21,634,578.96

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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.