Home / 28,985,620.88-39,986,826.05-25,681,285.35

Finding the Fourth Proportional to 28,985,620.88, 39,986,826.05 and 25,681,285.35

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Solution

The fourth proportional to 28,985,620.88, 39,986,826.05 and 25,681,285.35 is: 35,428,362.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,985,620.88 : 39,986,826.05 = 25,681,285.35 : x
  2. Step 2: Convert to fraction form
    28,985,620.88/39,986,826.05 = 25,681,285.35/x
  3. Step 3: Cross multiply
    28,985,620.88x = 39,986,826.05 × 25,681,285.35
  4. Step 4: Simplify right side
    28,985,620.88x = 1,026,913,090,095,066.75
  5. Step 5: Solve for x
    x = 1,026,913,090,095,066.75/28,985,620.88
  6. Step 6: Final answer
    x = 35,428,362.72

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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.