Home / 10,865,094,856.40-16,297,642,284.60-9,121,702,655.90

Finding the Fourth Proportional to 10,865,094,856.40, 16,297,642,284.60 and 9,121,702,655.90

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Solution

The fourth proportional to 10,865,094,856.40, 16,297,642,284.60 and 9,121,702,655.90 is: 13,682,553,983.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,865,094,856.40 : 16,297,642,284.60 = 9,121,702,655.90 : x
  2. Step 2: Convert to fraction form
    10,865,094,856.40/16,297,642,284.60 = 9,121,702,655.90/x
  3. Step 3: Cross multiply
    10,865,094,856.40x = 16,297,642,284.60 × 9,121,702,655.90
  4. Step 4: Simplify right side
    10,865,094,856.40x = 148,662,246,912,343,965,696
  5. Step 5: Solve for x
    x = 148,662,246,912,343,965,696/10,865,094,856.40
  6. Step 6: Final answer
    x = 13,682,553,983.85

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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.