Home / 656,854,934.80-906,462,211.32-355,440,247.88

Finding the Fourth Proportional to 656,854,934.80, 906,462,211.32 and 355,440,247.88

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Solution

The fourth proportional to 656,854,934.80, 906,462,211.32 and 355,440,247.88 is: 490,508,841.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,854,934.80 : 906,462,211.32 = 355,440,247.88 : x
  2. Step 2: Convert to fraction form
    656,854,934.80/906,462,211.32 = 355,440,247.88/x
  3. Step 3: Cross multiply
    656,854,934.80x = 906,462,211.32 × 355,440,247.88
  4. Step 4: Simplify right side
    656,854,934.80x = 322,193,153,085,433,728
  5. Step 5: Solve for x
    x = 322,193,153,085,433,728/656,854,934.80
  6. Step 6: Final answer
    x = 490,508,841.47

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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.