Home / 131,518,881.93-181,496,410.11-72,785,597.25

Finding the Fourth Proportional to 131,518,881.93, 181,496,410.11 and 72,785,597.25

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Solution

The fourth proportional to 131,518,881.93, 181,496,410.11 and 72,785,597.25 is: 100,444,319.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,518,881.93 : 181,496,410.11 = 72,785,597.25 : x
  2. Step 2: Convert to fraction form
    131,518,881.93/181,496,410.11 = 72,785,597.25/x
  3. Step 3: Cross multiply
    131,518,881.93x = 181,496,410.11 × 72,785,597.25
  4. Step 4: Simplify right side
    131,518,881.93x = 13,210,324,608,587,290
  5. Step 5: Solve for x
    x = 13,210,324,608,587,290/131,518,881.93
  6. Step 6: Final answer
    x = 100,444,319.59

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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.