Home / 131,131,801.26-180,985,579.47-78,211,904.94

Finding the Fourth Proportional to 131,131,801.26, 180,985,579.47 and 78,211,904.94

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Solution

The fourth proportional to 131,131,801.26, 180,985,579.47 and 78,211,904.94 is: 107,946,560.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,131,801.26 : 180,985,579.47 = 78,211,904.94 : x
  2. Step 2: Convert to fraction form
    131,131,801.26/180,985,579.47 = 78,211,904.94/x
  3. Step 3: Cross multiply
    131,131,801.26x = 180,985,579.47 × 78,211,904.94
  4. Step 4: Simplify right side
    131,131,801.26x = 14,155,226,937,018,456
  5. Step 5: Solve for x
    x = 14,155,226,937,018,456/131,131,801.26
  6. Step 6: Final answer
    x = 107,946,560.64

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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.