Home / 7,661,428.80-11,492,143.20-3,397,070.40

Finding the Fourth Proportional to 7,661,428.80, 11,492,143.20 and 3,397,070.40

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Solution

The fourth proportional to 7,661,428.80, 11,492,143.20 and 3,397,070.40 is: 5,095,605.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,661,428.80 : 11,492,143.20 = 3,397,070.40 : x
  2. Step 2: Convert to fraction form
    7,661,428.80/11,492,143.20 = 3,397,070.40/x
  3. Step 3: Cross multiply
    7,661,428.80x = 11,492,143.20 × 3,397,070.40
  4. Step 4: Simplify right side
    7,661,428.80x = 39,039,619,497,281.27
  5. Step 5: Solve for x
    x = 39,039,619,497,281.27/7,661,428.80
  6. Step 6: Final answer
    x = 5,095,605.60

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Similar ratio
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1.5x scale

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.