Home / 131,106,715.36-180,927,239.74-72,369,365.29

Finding the Fourth Proportional to 131,106,715.36, 180,927,239.74 and 72,369,365.29

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Solution

The fourth proportional to 131,106,715.36, 180,927,239.74 and 72,369,365.29 is: 99,869,708.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,106,715.36 : 180,927,239.74 = 72,369,365.29 : x
  2. Step 2: Convert to fraction form
    131,106,715.36/180,927,239.74 = 72,369,365.29/x
  3. Step 3: Cross multiply
    131,106,715.36x = 180,927,239.74 × 72,369,365.29
  4. Step 4: Simplify right side
    131,106,715.36x = 13,093,589,503,022,222
  5. Step 5: Solve for x
    x = 13,093,589,503,022,222/131,106,715.36
  6. Step 6: Final answer
    x = 99,869,708.94

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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.