Home / 131,106,666.13-180,927,171.82-72,369,315.75

Finding the Fourth Proportional to 131,106,666.13, 180,927,171.82 and 72,369,315.75

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Solution

The fourth proportional to 131,106,666.13, 180,927,171.82 and 72,369,315.75 is: 99,869,640.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,106,666.13 : 180,927,171.82 = 72,369,315.75 : x
  2. Step 2: Convert to fraction form
    131,106,666.13/180,927,171.82 = 72,369,315.75/x
  3. Step 3: Cross multiply
    131,106,666.13x = 180,927,171.82 × 72,369,315.75
  4. Step 4: Simplify right side
    131,106,666.13x = 13,093,575,625,965,020
  5. Step 5: Solve for x
    x = 13,093,575,625,965,020/131,106,666.13
  6. Step 6: Final answer
    x = 99,869,640.60

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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.