Home / 131,140,277.82-180,973,838.25-72,403,056.54

Finding the Fourth Proportional to 131,140,277.82, 180,973,838.25 and 72,403,056.54

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Solution

The fourth proportional to 131,140,277.82, 180,973,838.25 and 72,403,056.54 is: 99,916,358.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,140,277.82 : 180,973,838.25 = 72,403,056.54 : x
  2. Step 2: Convert to fraction form
    131,140,277.82/180,973,838.25 = 72,403,056.54/x
  3. Step 3: Cross multiply
    131,140,277.82x = 180,973,838.25 × 72,403,056.54
  4. Step 4: Simplify right side
    131,140,277.82x = 13,103,059,043,075,566
  5. Step 5: Solve for x
    x = 13,103,059,043,075,566/131,140,277.82
  6. Step 6: Final answer
    x = 99,916,358.73

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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.