Home / 9,206,985,688.71-12,705,616,352.64-5,137,844,729.77

Finding the Fourth Proportional to 9,206,985,688.71, 12,705,616,352.64 and 5,137,844,729.77

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Solution

The fourth proportional to 9,206,985,688.71, 12,705,616,352.64 and 5,137,844,729.77 is: 7,090,212,391.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,206,985,688.71 : 12,705,616,352.64 = 5,137,844,729.77 : x
  2. Step 2: Convert to fraction form
    9,206,985,688.71/12,705,616,352.64 = 5,137,844,729.77/x
  3. Step 3: Cross multiply
    9,206,985,688.71x = 12,705,616,352.64 × 5,137,844,729.77
  4. Step 4: Simplify right side
    9,206,985,688.71x = 65,279,484,015,890,956,288
  5. Step 5: Solve for x
    x = 65,279,484,015,890,956,288/9,206,985,688.71
  6. Step 6: Final answer
    x = 7,090,212,391.22

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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.