Home / 8,640,397.80-12,960,596.70-7,223,221.80

Finding the Fourth Proportional to 8,640,397.80, 12,960,596.70 and 7,223,221.80

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Solution

The fourth proportional to 8,640,397.80, 12,960,596.70 and 7,223,221.80 is: 10,834,832.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,640,397.80 : 12,960,596.70 = 7,223,221.80 : x
  2. Step 2: Convert to fraction form
    8,640,397.80/12,960,596.70 = 7,223,221.80/x
  3. Step 3: Cross multiply
    8,640,397.80x = 12,960,596.70 × 7,223,221.80
  4. Step 4: Simplify right side
    8,640,397.80x = 93,617,264,624,448.05
  5. Step 5: Solve for x
    x = 93,617,264,624,448.05/8,640,397.80
  6. Step 6: Final answer
    x = 10,834,832.70

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Double scale
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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.