Home / 656,854,899.56-906,462,162.81-355,440,212.64

Finding the Fourth Proportional to 656,854,899.56, 906,462,162.81 and 355,440,212.64

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Solution

The fourth proportional to 656,854,899.56, 906,462,162.81 and 355,440,212.64 is: 490,508,792.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,854,899.56 : 906,462,162.81 = 355,440,212.64 : x
  2. Step 2: Convert to fraction form
    656,854,899.56/906,462,162.81 = 355,440,212.64/x
  3. Step 3: Cross multiply
    656,854,899.56x = 906,462,162.81 × 355,440,212.64
  4. Step 4: Simplify right side
    656,854,899.56x = 322,193,103,899,300,672
  5. Step 5: Solve for x
    x = 322,193,103,899,300,672/656,854,899.56
  6. Step 6: Final answer
    x = 490,508,792.91

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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.