Home / 130,836,626.70-180,555,738.90-72,101,399.22

Finding the Fourth Proportional to 130,836,626.70, 180,555,738.90 and 72,101,399.22

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Solution

The fourth proportional to 130,836,626.70, 180,555,738.90 and 72,101,399.22 is: 99,500,588.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,836,626.70 : 180,555,738.90 = 72,101,399.22 : x
  2. Step 2: Convert to fraction form
    130,836,626.70/180,555,738.90 = 72,101,399.22/x
  3. Step 3: Cross multiply
    130,836,626.70x = 180,555,738.90 × 72,101,399.22
  4. Step 4: Simplify right side
    130,836,626.70x = 13,018,321,411,890,984
  5. Step 5: Solve for x
    x = 13,018,321,411,890,984/130,836,626.70
  6. Step 6: Final answer
    x = 99,500,588.94

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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.