Home / 315,423,007.80-473,134,511.70-133,646,566.20

Finding the Fourth Proportional to 315,423,007.80, 473,134,511.70 and 133,646,566.20

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Solution

The fourth proportional to 315,423,007.80, 473,134,511.70 and 133,646,566.20 is: 200,469,849.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,423,007.80 : 473,134,511.70 = 133,646,566.20 : x
  2. Step 2: Convert to fraction form
    315,423,007.80/473,134,511.70 = 133,646,566.20/x
  3. Step 3: Cross multiply
    315,423,007.80x = 473,134,511.70 × 133,646,566.20
  4. Step 4: Simplify right side
    315,423,007.80x = 63,232,802,839,418,728
  5. Step 5: Solve for x
    x = 63,232,802,839,418,728/315,423,007.80
  6. Step 6: Final answer
    x = 200,469,849.30

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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.