Home / 458,328,308.32-632,508,343.14-257,420,587.69

Finding the Fourth Proportional to 458,328,308.32, 632,508,343.14 and 257,420,587.69

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Solution

The fourth proportional to 458,328,308.32, 632,508,343.14 and 257,420,587.69 is: 355,248,991.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,328,308.32 : 632,508,343.14 = 257,420,587.69 : x
  2. Step 2: Convert to fraction form
    458,328,308.32/632,508,343.14 = 257,420,587.69/x
  3. Step 3: Cross multiply
    458,328,308.32x = 632,508,343.14 × 257,420,587.69
  4. Step 4: Simplify right side
    458,328,308.32x = 162,820,669,409,926,976
  5. Step 5: Solve for x
    x = 162,820,669,409,926,976/458,328,308.32
  6. Step 6: Final answer
    x = 355,248,991.73

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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.