Home / 806,496,901.60-1,208,895,046.80-315,020,264.80

Finding the Fourth Proportional to 806,496,901.60, 1,208,895,046.80 and 315,020,264.80

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Solution

The fourth proportional to 806,496,901.60, 1,208,895,046.80 and 315,020,264.80 is: 472,198,265.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,496,901.60 : 1,208,895,046.80 = 315,020,264.80 : x
  2. Step 2: Convert to fraction form
    806,496,901.60/1,208,895,046.80 = 315,020,264.80/x
  3. Step 3: Cross multiply
    806,496,901.60x = 1,208,895,046.80 × 315,020,264.80
  4. Step 4: Simplify right side
    806,496,901.60x = 380,826,437,758,344,384
  5. Step 5: Solve for x
    x = 380,826,437,758,344,384/806,496,901.60
  6. Step 6: Final answer
    x = 472,198,265.12

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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.