Home / 896,728,675.62-1,237,332,316.82-520,298,967.76

Finding the Fourth Proportional to 896,728,675.62, 1,237,332,316.82 and 520,298,967.76

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Solution

The fourth proportional to 896,728,675.62, 1,237,332,316.82 and 520,298,967.76 is: 717,923,653.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    896,728,675.62 : 1,237,332,316.82 = 520,298,967.76 : x
  2. Step 2: Convert to fraction form
    896,728,675.62/1,237,332,316.82 = 520,298,967.76/x
  3. Step 3: Cross multiply
    896,728,675.62x = 1,237,332,316.82 × 520,298,967.76
  4. Step 4: Simplify right side
    896,728,675.62x = 643,782,727,217,535,232
  5. Step 5: Solve for x
    x = 643,782,727,217,535,232/896,728,675.62
  6. Step 6: Final answer
    x = 717,923,653.74

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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.