Home / 658,940,018.16-909,334,729.61-361,587,235.41

Finding the Fourth Proportional to 658,940,018.16, 909,334,729.61 and 361,587,235.41

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Solution

The fourth proportional to 658,940,018.16, 909,334,729.61 and 361,587,235.41 is: 498,989,015.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,940,018.16 : 909,334,729.61 = 361,587,235.41 : x
  2. Step 2: Convert to fraction form
    658,940,018.16/909,334,729.61 = 361,587,235.41/x
  3. Step 3: Cross multiply
    658,940,018.16x = 909,334,729.61 × 361,587,235.41
  4. Step 4: Simplify right side
    658,940,018.16x = 328,803,830,942,883,712
  5. Step 5: Solve for x
    x = 328,803,830,942,883,712/658,940,018.16
  6. Step 6: Final answer
    x = 498,989,015.51

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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.