Home / 656,854,924.79-906,462,197.53-355,440,237.89

Finding the Fourth Proportional to 656,854,924.79, 906,462,197.53 and 355,440,237.89

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Solution

The fourth proportional to 656,854,924.79, 906,462,197.53 and 355,440,237.89 is: 490,508,827.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,854,924.79 : 906,462,197.53 = 355,440,237.89 : x
  2. Step 2: Convert to fraction form
    656,854,924.79/906,462,197.53 = 355,440,237.89/x
  3. Step 3: Cross multiply
    656,854,924.79x = 906,462,197.53 × 355,440,237.89
  4. Step 4: Simplify right side
    656,854,924.79x = 322,193,139,122,934,464
  5. Step 5: Solve for x
    x = 322,193,139,122,934,464/656,854,924.79
  6. Step 6: Final answer
    x = 490,508,827.69

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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.