Home / 131,106,699.75-180,927,218.33-72,369,349.55

Finding the Fourth Proportional to 131,106,699.75, 180,927,218.33 and 72,369,349.55

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Solution

The fourth proportional to 131,106,699.75, 180,927,218.33 and 72,369,349.55 is: 99,869,687.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,106,699.75 : 180,927,218.33 = 72,369,349.55 : x
  2. Step 2: Convert to fraction form
    131,106,699.75/180,927,218.33 = 72,369,349.55/x
  3. Step 3: Cross multiply
    131,106,699.75x = 180,927,218.33 × 72,369,349.55
  4. Step 4: Simplify right side
    131,106,699.75x = 13,093,585,106,432,938
  5. Step 5: Solve for x
    x = 13,093,585,106,432,938/131,106,699.75
  6. Step 6: Final answer
    x = 99,869,687.30

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1.5x scale

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.