Home / 28,386,928.19-42,579,777.48-7,916,101.52

Finding the Fourth Proportional to 28,386,928.19, 42,579,777.48 and 7,916,101.52

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Solution

The fourth proportional to 28,386,928.19, 42,579,777.48 and 7,916,101.52 is: 11,873,980.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,386,928.19 : 42,579,777.48 = 7,916,101.52 : x
  2. Step 2: Convert to fraction form
    28,386,928.19/42,579,777.48 = 7,916,101.52/x
  3. Step 3: Cross multiply
    28,386,928.19x = 42,579,777.48 × 7,916,101.52
  4. Step 4: Simplify right side
    28,386,928.19x = 337,065,841,230,689.75
  5. Step 5: Solve for x
    x = 337,065,841,230,689.75/28,386,928.19
  6. Step 6: Final answer
    x = 11,873,980.83

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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.