Home / 8,238,280.40-12,357,420.60-5,718,856.40

Finding the Fourth Proportional to 8,238,280.40, 12,357,420.60 and 5,718,856.40

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Solution

The fourth proportional to 8,238,280.40, 12,357,420.60 and 5,718,856.40 is: 8,578,284.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,238,280.40 : 12,357,420.60 = 5,718,856.40 : x
  2. Step 2: Convert to fraction form
    8,238,280.40/12,357,420.60 = 5,718,856.40/x
  3. Step 3: Cross multiply
    8,238,280.40x = 12,357,420.60 × 5,718,856.40
  4. Step 4: Simplify right side
    8,238,280.40x = 70,670,313,885,801.84
  5. Step 5: Solve for x
    x = 70,670,313,885,801.84/8,238,280.40
  6. Step 6: Final answer
    x = 8,578,284.60

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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.