Home / 479,547,889.80-719,321,834.70-324,579,694.20

Finding the Fourth Proportional to 479,547,889.80, 719,321,834.70 and 324,579,694.20

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Solution

The fourth proportional to 479,547,889.80, 719,321,834.70 and 324,579,694.20 is: 486,869,541.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,547,889.80 : 719,321,834.70 = 324,579,694.20 : x
  2. Step 2: Convert to fraction form
    479,547,889.80/719,321,834.70 = 324,579,694.20/x
  3. Step 3: Cross multiply
    479,547,889.80x = 719,321,834.70 × 324,579,694.20
  4. Step 4: Simplify right side
    479,547,889.80x = 233,477,261,138,308,960
  5. Step 5: Solve for x
    x = 233,477,261,138,308,960/479,547,889.80
  6. Step 6: Final answer
    x = 486,869,541.30

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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.