Home / 820,763,443.76-1,132,631,611.80-468,333,031.28

Finding the Fourth Proportional to 820,763,443.76, 1,132,631,611.80 and 468,333,031.28

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Solution

The fourth proportional to 820,763,443.76, 1,132,631,611.80 and 468,333,031.28 is: 646,287,063.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,763,443.76 : 1,132,631,611.80 = 468,333,031.28 : x
  2. Step 2: Convert to fraction form
    820,763,443.76/1,132,631,611.80 = 468,333,031.28/x
  3. Step 3: Cross multiply
    820,763,443.76x = 1,132,631,611.80 × 468,333,031.28
  4. Step 4: Simplify right side
    820,763,443.76x = 530,448,796,077,846,144
  5. Step 5: Solve for x
    x = 530,448,796,077,846,144/820,763,443.76
  6. Step 6: Final answer
    x = 646,287,063.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.