Home / 172,196,464.06-258,158,292.90-85,890,445.66

Finding the Fourth Proportional to 172,196,464.06, 258,158,292.90 and 85,890,445.66

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Solution

The fourth proportional to 172,196,464.06, 258,158,292.90 and 85,890,445.66 is: 128,767,631.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,196,464.06 : 258,158,292.90 = 85,890,445.66 : x
  2. Step 2: Convert to fraction form
    172,196,464.06/258,158,292.90 = 85,890,445.66/x
  3. Step 3: Cross multiply
    172,196,464.06x = 258,158,292.90 × 85,890,445.66
  4. Step 4: Simplify right side
    172,196,464.06x = 22,173,330,828,005,812
  5. Step 5: Solve for x
    x = 22,173,330,828,005,812/172,196,464.06
  6. Step 6: Final answer
    x = 128,767,631.49

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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.