Home / 7,698,979.84-11,543,220.96-3,905,147.20

Finding the Fourth Proportional to 7,698,979.84, 11,543,220.96 and 3,905,147.20

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Solution

The fourth proportional to 7,698,979.84, 11,543,220.96 and 3,905,147.20 is: 5,855,058.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,698,979.84 : 11,543,220.96 = 3,905,147.20 : x
  2. Step 2: Convert to fraction form
    7,698,979.84/11,543,220.96 = 3,905,147.20/x
  3. Step 3: Cross multiply
    7,698,979.84x = 11,543,220.96 × 3,905,147.20
  4. Step 4: Simplify right side
    7,698,979.84x = 45,077,977,010,925.32
  5. Step 5: Solve for x
    x = 45,077,977,010,925.32/7,698,979.84
  6. Step 6: Final answer
    x = 5,855,058.46

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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.