Home / 484,984,880.80-727,723,042.80-212,358,320.80

Finding the Fourth Proportional to 484,984,880.80, 727,723,042.80 and 212,358,320.80

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Solution

The fourth proportional to 484,984,880.80, 727,723,042.80 and 212,358,320.80 is: 318,645,074.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,984,880.80 : 727,723,042.80 = 212,358,320.80 : x
  2. Step 2: Convert to fraction form
    484,984,880.80/727,723,042.80 = 212,358,320.80/x
  3. Step 3: Cross multiply
    484,984,880.80x = 727,723,042.80 × 212,358,320.80
  4. Step 4: Simplify right side
    484,984,880.80x = 154,538,043,376,474,528
  5. Step 5: Solve for x
    x = 154,538,043,376,474,528/484,984,880.80
  6. Step 6: Final answer
    x = 318,645,074.30

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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.