Home / 646,689,997.10-970,020,989.96-180,338,977.70

Finding the Fourth Proportional to 646,689,997.10, 970,020,989.96 and 180,338,977.70

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Solution

The fourth proportional to 646,689,997.10, 970,020,989.96 and 180,338,977.70 is: 270,504,560.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,689,997.10 : 970,020,989.96 = 180,338,977.70 : x
  2. Step 2: Convert to fraction form
    646,689,997.10/970,020,989.96 = 180,338,977.70/x
  3. Step 3: Cross multiply
    646,689,997.10x = 970,020,989.96 × 180,338,977.70
  4. Step 4: Simplify right side
    646,689,997.10x = 174,932,593,676,928,352
  5. Step 5: Solve for x
    x = 174,932,593,676,928,352/646,689,997.10
  6. Step 6: Final answer
    x = 270,504,560.86

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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.