Home / 9,789,947.63-13,510,352.74-5,379,947.45

Finding the Fourth Proportional to 9,789,947.63, 13,510,352.74 and 5,379,947.45

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Solution

The fourth proportional to 9,789,947.63, 13,510,352.74 and 5,379,947.45 is: 7,424,451.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,789,947.63 : 13,510,352.74 = 5,379,947.45 : x
  2. Step 2: Convert to fraction form
    9,789,947.63/13,510,352.74 = 5,379,947.45/x
  3. Step 3: Cross multiply
    9,789,947.63x = 13,510,352.74 × 5,379,947.45
  4. Step 4: Simplify right side
    9,789,947.63x = 72,684,987,718,061.62
  5. Step 5: Solve for x
    x = 72,684,987,718,061.62/9,789,947.63
  6. Step 6: Final answer
    x = 7,424,451.13

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Double scale
Find fourth proportional to 9,789,948.63, 13,510,354.12 and 5,379,948.45
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1.5x scale

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.