Home / 445,824,038.40-668,736,057.60-398,206,924.80

Finding the Fourth Proportional to 445,824,038.40, 668,736,057.60 and 398,206,924.80

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Solution

The fourth proportional to 445,824,038.40, 668,736,057.60 and 398,206,924.80 is: 597,310,387.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,824,038.40 : 668,736,057.60 = 398,206,924.80 : x
  2. Step 2: Convert to fraction form
    445,824,038.40/668,736,057.60 = 398,206,924.80/x
  3. Step 3: Cross multiply
    445,824,038.40x = 668,736,057.60 × 398,206,924.80
  4. Step 4: Simplify right side
    445,824,038.40x = 266,295,328,999,771,680
  5. Step 5: Solve for x
    x = 266,295,328,999,771,680/445,824,038.40
  6. Step 6: Final answer
    x = 597,310,387.20

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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.