Home / 130,836,611.54-180,555,718.03-72,101,384.07

Finding the Fourth Proportional to 130,836,611.54, 180,555,718.03 and 72,101,384.07

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Solution

The fourth proportional to 130,836,611.54, 180,555,718.03 and 72,101,384.07 is: 99,500,568.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,836,611.54 : 180,555,718.03 = 72,101,384.07 : x
  2. Step 2: Convert to fraction form
    130,836,611.54/180,555,718.03 = 72,101,384.07/x
  3. Step 3: Cross multiply
    130,836,611.54x = 180,555,718.03 × 72,101,384.07
  4. Step 4: Simplify right side
    130,836,611.54x = 13,018,317,171,715,652
  5. Step 5: Solve for x
    x = 13,018,317,171,715,652/130,836,611.54
  6. Step 6: Final answer
    x = 99,500,568.06

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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.