Home / 7,104,140.80-10,656,211.20-6,453,289.60

Finding the Fourth Proportional to 7,104,140.80, 10,656,211.20 and 6,453,289.60

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Solution

The fourth proportional to 7,104,140.80, 10,656,211.20 and 6,453,289.60 is: 9,679,934.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,104,140.80 : 10,656,211.20 = 6,453,289.60 : x
  2. Step 2: Convert to fraction form
    7,104,140.80/10,656,211.20 = 6,453,289.60/x
  3. Step 3: Cross multiply
    7,104,140.80x = 10,656,211.20 × 6,453,289.60
  4. Step 4: Simplify right side
    7,104,140.80x = 68,767,616,912,363.51
  5. Step 5: Solve for x
    x = 68,767,616,912,363.51/7,104,140.80
  6. Step 6: Final answer
    x = 9,679,934.40

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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.