Home / 386,177,817.77-532,943,607.98-218,917,320.76

Finding the Fourth Proportional to 386,177,817.77, 532,943,607.98 and 218,917,320.76

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Solution

The fourth proportional to 386,177,817.77, 532,943,607.98 and 218,917,320.76 is: 302,116,230.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,177,817.77 : 532,943,607.98 = 218,917,320.76 : x
  2. Step 2: Convert to fraction form
    386,177,817.77/532,943,607.98 = 218,917,320.76/x
  3. Step 3: Cross multiply
    386,177,817.77x = 532,943,607.98 × 218,917,320.76
  4. Step 4: Simplify right side
    386,177,817.77x = 116,670,586,775,149,360
  5. Step 5: Solve for x
    x = 116,670,586,775,149,360/386,177,817.77
  6. Step 6: Final answer
    x = 302,116,230.93

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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.