Home / 220,276,971.79-330,453,100.83-90,813,810.76

Finding the Fourth Proportional to 220,276,971.79, 330,453,100.83 and 90,813,810.76

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Solution

The fourth proportional to 220,276,971.79, 330,453,100.83 and 90,813,810.76 is: 136,236,235.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,276,971.79 : 330,453,100.83 = 90,813,810.76 : x
  2. Step 2: Convert to fraction form
    220,276,971.79/330,453,100.83 = 90,813,810.76/x
  3. Step 3: Cross multiply
    220,276,971.79x = 330,453,100.83 × 90,813,810.76
  4. Step 4: Simplify right side
    220,276,971.79x = 30,009,705,363,830,820
  5. Step 5: Solve for x
    x = 30,009,705,363,830,820/220,276,971.79
  6. Step 6: Final answer
    x = 136,236,235.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.