Home / 970,882,520.30-1,340,182,231.22-636,376,599.50

Finding the Fourth Proportional to 970,882,520.30, 1,340,182,231.22 and 636,376,599.50

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Solution

The fourth proportional to 970,882,520.30, 1,340,182,231.22 and 636,376,599.50 is: 878,438,526.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,882,520.30 : 1,340,182,231.22 = 636,376,599.50 : x
  2. Step 2: Convert to fraction form
    970,882,520.30/1,340,182,231.22 = 636,376,599.50/x
  3. Step 3: Cross multiply
    970,882,520.30x = 1,340,182,231.22 × 636,376,599.50
  4. Step 4: Simplify right side
    970,882,520.30x = 852,860,611,004,223,488
  5. Step 5: Solve for x
    x = 852,860,611,004,223,488/970,882,520.30
  6. Step 6: Final answer
    x = 878,438,526.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.