Home / 7,678,684,257.11-11,518,026,385.67-2,157,942,288.86

Finding the Fourth Proportional to 7,678,684,257.11, 11,518,026,385.67 and 2,157,942,288.86

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Solution

The fourth proportional to 7,678,684,257.11, 11,518,026,385.67 and 2,157,942,288.86 is: 3,236,913,433.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,678,684,257.11 : 11,518,026,385.67 = 2,157,942,288.86 : x
  2. Step 2: Convert to fraction form
    7,678,684,257.11/11,518,026,385.67 = 2,157,942,288.86/x
  3. Step 3: Cross multiply
    7,678,684,257.11x = 11,518,026,385.67 × 2,157,942,288.86
  4. Step 4: Simplify right side
    7,678,684,257.11x = 24,855,236,221,805,735,936
  5. Step 5: Solve for x
    x = 24,855,236,221,805,735,936/7,678,684,257.11
  6. Step 6: Final answer
    x = 3,236,913,433.29

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1.5x scale

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.