Home / 837,834,522.12-1,156,211,635.68-485,614,815.84

Finding the Fourth Proportional to 837,834,522.12, 1,156,211,635.68 and 485,614,815.84

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Solution

The fourth proportional to 837,834,522.12, 1,156,211,635.68 and 485,614,815.84 is: 670,148,443.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,834,522.12 : 1,156,211,635.68 = 485,614,815.84 : x
  2. Step 2: Convert to fraction form
    837,834,522.12/1,156,211,635.68 = 485,614,815.84/x
  3. Step 3: Cross multiply
    837,834,522.12x = 1,156,211,635.68 × 485,614,815.84
  4. Step 4: Simplify right side
    837,834,522.12x = 561,473,500,532,808,384
  5. Step 5: Solve for x
    x = 561,473,500,532,808,384/837,834,522.12
  6. Step 6: Final answer
    x = 670,148,443.05

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Double scale
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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.