Home / 438,417,172.56-605,015,647.95-262,205,139.66

Finding the Fourth Proportional to 438,417,172.56, 605,015,647.95 and 262,205,139.66

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Solution

The fourth proportional to 438,417,172.56, 605,015,647.95 and 262,205,139.66 is: 361,843,062.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,417,172.56 : 605,015,647.95 = 262,205,139.66 : x
  2. Step 2: Convert to fraction form
    438,417,172.56/605,015,647.95 = 262,205,139.66/x
  3. Step 3: Cross multiply
    438,417,172.56x = 605,015,647.95 × 262,205,139.66
  4. Step 4: Simplify right side
    438,417,172.56x = 158,638,212,467,215,168
  5. Step 5: Solve for x
    x = 158,638,212,467,215,168/438,417,172.56
  6. Step 6: Final answer
    x = 361,843,062.72

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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.