Home / 82,409,432,856.40-123,614,149,284.60-20,371,136,280.40

Finding the Fourth Proportional to 82,409,432,856.40, 123,614,149,284.60 and 20,371,136,280.40

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Solution

The fourth proportional to 82,409,432,856.40, 123,614,149,284.60 and 20,371,136,280.40 is: 30,556,704,420.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,409,432,856.40 : 123,614,149,284.60 = 20,371,136,280.40 : x
  2. Step 2: Convert to fraction form
    82,409,432,856.40/123,614,149,284.60 = 20,371,136,280.40/x
  3. Step 3: Cross multiply
    82,409,432,856.40x = 123,614,149,284.60 × 20,371,136,280.40
  4. Step 4: Simplify right side
    82,409,432,856.40x = 2,518,160,681,262,297,120,768
  5. Step 5: Solve for x
    x = 2,518,160,681,262,297,120,768/82,409,432,856.40
  6. Step 6: Final answer
    x = 30,556,704,420.60

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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.