Home / 442,880,641.60-664,320,962.40-313,634,190.40

Finding the Fourth Proportional to 442,880,641.60, 664,320,962.40 and 313,634,190.40

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Solution

The fourth proportional to 442,880,641.60, 664,320,962.40 and 313,634,190.40 is: 470,451,285.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,880,641.60 : 664,320,962.40 = 313,634,190.40 : x
  2. Step 2: Convert to fraction form
    442,880,641.60/664,320,962.40 = 313,634,190.40/x
  3. Step 3: Cross multiply
    442,880,641.60x = 664,320,962.40 × 313,634,190.40
  4. Step 4: Simplify right side
    442,880,641.60x = 208,353,767,208,072,832
  5. Step 5: Solve for x
    x = 208,353,767,208,072,832/442,880,641.60
  6. Step 6: Final answer
    x = 470,451,285.60

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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.