Home / 9,206,985,709.76-12,705,616,381.64-5,137,844,750.76

Finding the Fourth Proportional to 9,206,985,709.76, 12,705,616,381.64 and 5,137,844,750.76

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Solution

The fourth proportional to 9,206,985,709.76, 12,705,616,381.64 and 5,137,844,750.76 is: 7,090,212,420.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,206,985,709.76 : 12,705,616,381.64 = 5,137,844,750.76 : x
  2. Step 2: Convert to fraction form
    9,206,985,709.76/12,705,616,381.64 = 5,137,844,750.76/x
  3. Step 3: Cross multiply
    9,206,985,709.76x = 12,705,616,381.64 × 5,137,844,750.76
  4. Step 4: Simplify right side
    9,206,985,709.76x = 65,279,484,431,579,340,800
  5. Step 5: Solve for x
    x = 65,279,484,431,579,340,800/9,206,985,709.76
  6. Step 6: Final answer
    x = 7,090,212,420.16

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Double scale
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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.