Home / 122,787,689.88-169,430,931.12-73,233,879.36

Finding the Fourth Proportional to 122,787,689.88, 169,430,931.12 and 73,233,879.36

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Solution

The fourth proportional to 122,787,689.88, 169,430,931.12 and 73,233,879.36 is: 101,053,162.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,787,689.88 : 169,430,931.12 = 73,233,879.36 : x
  2. Step 2: Convert to fraction form
    122,787,689.88/169,430,931.12 = 73,233,879.36/x
  3. Step 3: Cross multiply
    122,787,689.88x = 169,430,931.12 × 73,233,879.36
  4. Step 4: Simplify right side
    122,787,689.88x = 12,408,084,369,494,550
  5. Step 5: Solve for x
    x = 12,408,084,369,494,550/122,787,689.88
  6. Step 6: Final answer
    x = 101,053,162.43

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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.