Home / 124,383,615.36-171,628,130.88-72,160,679.76

Finding the Fourth Proportional to 124,383,615.36, 171,628,130.88 and 72,160,679.76

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Solution

The fourth proportional to 124,383,615.36, 171,628,130.88 and 72,160,679.76 is: 99,569,405.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,383,615.36 : 171,628,130.88 = 72,160,679.76 : x
  2. Step 2: Convert to fraction form
    124,383,615.36/171,628,130.88 = 72,160,679.76/x
  3. Step 3: Cross multiply
    124,383,615.36x = 171,628,130.88 × 72,160,679.76
  4. Step 4: Simplify right side
    124,383,615.36x = 12,384,802,590,239,048
  5. Step 5: Solve for x
    x = 12,384,802,590,239,048/124,383,615.36
  6. Step 6: Final answer
    x = 99,569,405.14

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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.