Home / 6,915,607.70-10,373,411.55-6,443,215.70

Finding the Fourth Proportional to 6,915,607.70, 10,373,411.55 and 6,443,215.70

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Solution

The fourth proportional to 6,915,607.70, 10,373,411.55 and 6,443,215.70 is: 9,664,823.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,915,607.70 : 10,373,411.55 = 6,443,215.70 : x
  2. Step 2: Convert to fraction form
    6,915,607.70/10,373,411.55 = 6,443,215.70/x
  3. Step 3: Cross multiply
    6,915,607.70x = 10,373,411.55 × 6,443,215.70
  4. Step 4: Simplify right side
    6,915,607.70x = 66,838,128,161,521.34
  5. Step 5: Solve for x
    x = 66,838,128,161,521.34/6,915,607.70
  6. Step 6: Final answer
    x = 9,664,823.55

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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.