Home / 172,196,463.06-258,158,291.40-85,890,444.66

Finding the Fourth Proportional to 172,196,463.06, 258,158,291.40 and 85,890,444.66

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Solution

The fourth proportional to 172,196,463.06, 258,158,291.40 and 85,890,444.66 is: 128,767,629.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,196,463.06 : 258,158,291.40 = 85,890,444.66 : x
  2. Step 2: Convert to fraction form
    172,196,463.06/258,158,291.40 = 85,890,444.66/x
  3. Step 3: Cross multiply
    172,196,463.06x = 258,158,291.40 × 85,890,444.66
  4. Step 4: Simplify right side
    172,196,463.06x = 22,173,330,441,011,852
  5. Step 5: Solve for x
    x = 22,173,330,441,011,852/172,196,463.06
  6. Step 6: Final answer
    x = 128,767,629.99

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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.