Home / 805,721,396.54-1,208,512,864.58-490,505,618.72

Finding the Fourth Proportional to 805,721,396.54, 1,208,512,864.58 and 490,505,618.72

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Solution

The fourth proportional to 805,721,396.54, 1,208,512,864.58 and 490,505,618.72 is: 735,716,282.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,721,396.54 : 1,208,512,864.58 = 490,505,618.72 : x
  2. Step 2: Convert to fraction form
    805,721,396.54/1,208,512,864.58 = 490,505,618.72/x
  3. Step 3: Cross multiply
    805,721,396.54x = 1,208,512,864.58 × 490,505,618.72
  4. Step 4: Simplify right side
    805,721,396.54x = 592,782,350,372,461,312
  5. Step 5: Solve for x
    x = 592,782,350,372,461,312/805,721,396.54
  6. Step 6: Final answer
    x = 735,716,282.23

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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.