Home / 220,018,914.55-330,028,432.98-81,826,465.74

Finding the Fourth Proportional to 220,018,914.55, 330,028,432.98 and 81,826,465.74

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Solution

The fourth proportional to 220,018,914.55, 330,028,432.98 and 81,826,465.74 is: 122,739,721.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,018,914.55 : 330,028,432.98 = 81,826,465.74 : x
  2. Step 2: Convert to fraction form
    220,018,914.55/330,028,432.98 = 81,826,465.74/x
  3. Step 3: Cross multiply
    220,018,914.55x = 330,028,432.98 × 81,826,465.74
  4. Step 4: Simplify right side
    220,018,914.55x = 27,005,060,264,463,856
  5. Step 5: Solve for x
    x = 27,005,060,264,463,856/220,018,914.55
  6. Step 6: Final answer
    x = 122,739,721.35

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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.