Home / 658,940,019.79-909,334,731.86-361,587,237.04

Finding the Fourth Proportional to 658,940,019.79, 909,334,731.86 and 361,587,237.04

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Solution

The fourth proportional to 658,940,019.79, 909,334,731.86 and 361,587,237.04 is: 498,989,017.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,940,019.79 : 909,334,731.86 = 361,587,237.04 : x
  2. Step 2: Convert to fraction form
    658,940,019.79/909,334,731.86 = 361,587,237.04/x
  3. Step 3: Cross multiply
    658,940,019.79x = 909,334,731.86 × 361,587,237.04
  4. Step 4: Simplify right side
    658,940,019.79x = 328,803,833,231,412,096
  5. Step 5: Solve for x
    x = 328,803,833,231,412,096/658,940,019.79
  6. Step 6: Final answer
    x = 498,989,017.75

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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.