Home / 438,417,328.38-605,015,862.87-262,205,295.49

Finding the Fourth Proportional to 438,417,328.38, 605,015,862.87 and 262,205,295.49

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Solution

The fourth proportional to 438,417,328.38, 605,015,862.87 and 262,205,295.49 is: 361,843,277.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,417,328.38 : 605,015,862.87 = 262,205,295.49 : x
  2. Step 2: Convert to fraction form
    438,417,328.38/605,015,862.87 = 262,205,295.49/x
  3. Step 3: Cross multiply
    438,417,328.38x = 605,015,862.87 × 262,205,295.49
  4. Step 4: Simplify right side
    438,417,328.38x = 158,638,363,097,792,928
  5. Step 5: Solve for x
    x = 158,638,363,097,792,928/438,417,328.38
  6. Step 6: Final answer
    x = 361,843,277.69

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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.