Home / 7,113,109.19-9,815,045.87-3,972,985.92

Finding the Fourth Proportional to 7,113,109.19, 9,815,045.87 and 3,972,985.92

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Solution

The fourth proportional to 7,113,109.19, 9,815,045.87 and 3,972,985.92 is: 5,482,137.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,113,109.19 : 9,815,045.87 = 3,972,985.92 : x
  2. Step 2: Convert to fraction form
    7,113,109.19/9,815,045.87 = 3,972,985.92/x
  3. Step 3: Cross multiply
    7,113,109.19x = 9,815,045.87 × 3,972,985.92
  4. Step 4: Simplify right side
    7,113,109.19x = 38,995,039,025,799.22
  5. Step 5: Solve for x
    x = 38,995,039,025,799.22/7,113,109.19
  6. Step 6: Final answer
    x = 5,482,137.00

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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.