Home / 656,854,922.80-906,462,194.96-355,440,235.92

Finding the Fourth Proportional to 656,854,922.80, 906,462,194.96 and 355,440,235.92

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Solution

The fourth proportional to 656,854,922.80, 906,462,194.96 and 355,440,235.92 is: 490,508,825.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,854,922.80 : 906,462,194.96 = 355,440,235.92 : x
  2. Step 2: Convert to fraction form
    656,854,922.80/906,462,194.96 = 355,440,235.92/x
  3. Step 3: Cross multiply
    656,854,922.80x = 906,462,194.96 × 355,440,235.92
  4. Step 4: Simplify right side
    656,854,922.80x = 322,193,136,429,143,488
  5. Step 5: Solve for x
    x = 322,193,136,429,143,488/656,854,922.80
  6. Step 6: Final answer
    x = 490,508,825.08

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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.