Home / 400,729,012,511.10-553,006,393,604.85-217,826,114,155.80

Finding the Fourth Proportional to 400,729,012,511.10, 553,006,393,604.85 and 217,826,114,155.80

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Solution

The fourth proportional to 400,729,012,511.10, 553,006,393,604.85 and 217,826,114,155.80 is: 300,600,231,232.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,729,012,511.10 : 553,006,393,604.85 = 217,826,114,155.80 : x
  2. Step 2: Convert to fraction form
    400,729,012,511.10/553,006,393,604.85 = 217,826,114,155.80/x
  3. Step 3: Cross multiply
    400,729,012,511.10x = 553,006,393,604.85 × 217,826,114,155.80
  4. Step 4: Simplify right side
    400,729,012,511.10x = 120,459,233,822,257,312,694,272
  5. Step 5: Solve for x
    x = 120,459,233,822,257,312,694,272/400,729,012,511.10
  6. Step 6: Final answer
    x = 300,600,231,232.12

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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.