Home / 658,940,011.40-909,334,720.31-361,587,228.66

Finding the Fourth Proportional to 658,940,011.40, 909,334,720.31 and 361,587,228.66

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Solution

The fourth proportional to 658,940,011.40, 909,334,720.31 and 361,587,228.66 is: 498,989,006.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,940,011.40 : 909,334,720.31 = 361,587,228.66 : x
  2. Step 2: Convert to fraction form
    658,940,011.40/909,334,720.31 = 361,587,228.66/x
  3. Step 3: Cross multiply
    658,940,011.40x = 909,334,720.31 × 361,587,228.66
  4. Step 4: Simplify right side
    658,940,011.40x = 328,803,821,439,401,216
  5. Step 5: Solve for x
    x = 328,803,821,439,401,216/658,940,011.40
  6. Step 6: Final answer
    x = 498,989,006.21

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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.