Home / 131,518,880.43-181,496,408.04-72,785,595.75

Finding the Fourth Proportional to 131,518,880.43, 181,496,408.04 and 72,785,595.75

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Solution

The fourth proportional to 131,518,880.43, 181,496,408.04 and 72,785,595.75 is: 100,444,317.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,518,880.43 : 181,496,408.04 = 72,785,595.75 : x
  2. Step 2: Convert to fraction form
    131,518,880.43/181,496,408.04 = 72,785,595.75/x
  3. Step 3: Cross multiply
    131,518,880.43x = 181,496,408.04 × 72,785,595.75
  4. Step 4: Simplify right side
    131,518,880.43x = 13,210,324,185,676,490
  5. Step 5: Solve for x
    x = 13,210,324,185,676,490/131,518,880.43
  6. Step 6: Final answer
    x = 100,444,317.52

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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.