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Finding the Fourth Proportional to 478,975,496.80, 718,463,245.20 and 325,920,488.80

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Solution

The fourth proportional to 478,975,496.80, 718,463,245.20 and 325,920,488.80 is: 488,880,733.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,975,496.80 : 718,463,245.20 = 325,920,488.80 : x
  2. Step 2: Convert to fraction form
    478,975,496.80/718,463,245.20 = 325,920,488.80/x
  3. Step 3: Cross multiply
    478,975,496.80x = 718,463,245.20 × 325,920,488.80
  4. Step 4: Simplify right side
    478,975,496.80x = 234,161,892,060,418,272
  5. Step 5: Solve for x
    x = 234,161,892,060,418,272/478,975,496.80
  6. Step 6: Final answer
    x = 488,880,733.20

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1.5x scale

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.