Home / 7,109,653.50-9,811,328.31-3,890,389.50

Finding the Fourth Proportional to 7,109,653.50, 9,811,328.31 and 3,890,389.50

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Solution

The fourth proportional to 7,109,653.50, 9,811,328.31 and 3,890,389.50 is: 5,368,741.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,109,653.50 : 9,811,328.31 = 3,890,389.50 : x
  2. Step 2: Convert to fraction form
    7,109,653.50/9,811,328.31 = 3,890,389.50/x
  3. Step 3: Cross multiply
    7,109,653.50x = 9,811,328.31 × 3,890,389.50
  4. Step 4: Simplify right side
    7,109,653.50x = 38,169,888,638,276.75
  5. Step 5: Solve for x
    x = 38,169,888,638,276.75/7,109,653.50
  6. Step 6: Final answer
    x = 5,368,741.06

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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.