Home / 442,871,493.15-664,307,239.73-258,449,656.35

Finding the Fourth Proportional to 442,871,493.15, 664,307,239.73 and 258,449,656.35

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Solution

The fourth proportional to 442,871,493.15, 664,307,239.73 and 258,449,656.35 is: 387,674,484.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,871,493.15 : 664,307,239.73 = 258,449,656.35 : x
  2. Step 2: Convert to fraction form
    442,871,493.15/664,307,239.73 = 258,449,656.35/x
  3. Step 3: Cross multiply
    442,871,493.15x = 664,307,239.73 × 258,449,656.35
  4. Step 4: Simplify right side
    442,871,493.15x = 171,689,977,817,743,328
  5. Step 5: Solve for x
    x = 171,689,977,817,743,328/442,871,493.15
  6. Step 6: Final answer
    x = 387,674,484.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.