Home / 131,140,357.44-180,973,947.96-72,403,136.16

Finding the Fourth Proportional to 131,140,357.44, 180,973,947.96 and 72,403,136.16

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Solution

The fourth proportional to 131,140,357.44, 180,973,947.96 and 72,403,136.16 is: 99,916,468.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,140,357.44 : 180,973,947.96 = 72,403,136.16 : x
  2. Step 2: Convert to fraction form
    131,140,357.44/180,973,947.96 = 72,403,136.16/x
  3. Step 3: Cross multiply
    131,140,357.44x = 180,973,947.96 × 72,403,136.16
  4. Step 4: Simplify right side
    131,140,357.44x = 13,103,081,395,560,634
  5. Step 5: Solve for x
    x = 13,103,081,395,560,634/131,140,357.44
  6. Step 6: Final answer
    x = 99,916,468.52

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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.