Home / 853,092,007.80-1,279,638,011.70-484,484,530.20

Finding the Fourth Proportional to 853,092,007.80, 1,279,638,011.70 and 484,484,530.20

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Solution

The fourth proportional to 853,092,007.80, 1,279,638,011.70 and 484,484,530.20 is: 726,726,795.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,092,007.80 : 1,279,638,011.70 = 484,484,530.20 : x
  2. Step 2: Convert to fraction form
    853,092,007.80/1,279,638,011.70 = 484,484,530.20/x
  3. Step 3: Cross multiply
    853,092,007.80x = 1,279,638,011.70 × 484,484,530.20
  4. Step 4: Simplify right side
    853,092,007.80x = 619,964,820,924,536,576
  5. Step 5: Solve for x
    x = 619,964,820,924,536,576/853,092,007.80
  6. Step 6: Final answer
    x = 726,726,795.30

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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.