Home / 445,824,488.40-668,736,732.60-398,207,374.80

Finding the Fourth Proportional to 445,824,488.40, 668,736,732.60 and 398,207,374.80

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Solution

The fourth proportional to 445,824,488.40, 668,736,732.60 and 398,207,374.80 is: 597,311,062.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,824,488.40 : 668,736,732.60 = 398,207,374.80 : x
  2. Step 2: Convert to fraction form
    445,824,488.40/668,736,732.60 = 398,207,374.80/x
  3. Step 3: Cross multiply
    445,824,488.40x = 668,736,732.60 × 398,207,374.80
  4. Step 4: Simplify right side
    445,824,488.40x = 266,295,898,720,975,584
  5. Step 5: Solve for x
    x = 266,295,898,720,975,584/445,824,488.40
  6. Step 6: Final answer
    x = 597,311,062.20

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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.