Home / 445,730,792.80-668,029,318.80-396,979,938.40

Finding the Fourth Proportional to 445,730,792.80, 668,029,318.80 and 396,979,938.40

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Solution

The fourth proportional to 445,730,792.80, 668,029,318.80 and 396,979,938.40 is: 594,965,037.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,730,792.80 : 668,029,318.80 = 396,979,938.40 : x
  2. Step 2: Convert to fraction form
    445,730,792.80/668,029,318.80 = 396,979,938.40/x
  3. Step 3: Cross multiply
    445,730,792.80x = 668,029,318.80 × 396,979,938.40
  4. Step 4: Simplify right side
    445,730,792.80x = 265,194,237,826,617,920
  5. Step 5: Solve for x
    x = 265,194,237,826,617,920/445,730,792.80
  6. Step 6: Final answer
    x = 594,965,037.44

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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.