Home / 7,128,443.80-10,692,665.70-6,708,539.80

Finding the Fourth Proportional to 7,128,443.80, 10,692,665.70 and 6,708,539.80

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Solution

The fourth proportional to 7,128,443.80, 10,692,665.70 and 6,708,539.80 is: 10,062,809.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128,443.80 : 10,692,665.70 = 6,708,539.80 : x
  2. Step 2: Convert to fraction form
    7,128,443.80/10,692,665.70 = 6,708,539.80/x
  3. Step 3: Cross multiply
    7,128,443.80x = 10,692,665.70 × 6,708,539.80
  4. Step 4: Simplify right side
    7,128,443.80x = 71,732,173,416,544.86
  5. Step 5: Solve for x
    x = 71,732,173,416,544.86/7,128,443.80
  6. Step 6: Final answer
    x = 10,062,809.70

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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.