Home / 122,284,937.29-168,688,894.67-72,690,034.81

Finding the Fourth Proportional to 122,284,937.29, 168,688,894.67 and 72,690,034.81

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Solution

The fourth proportional to 122,284,937.29, 168,688,894.67 and 72,690,034.81 is: 100,274,014.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,284,937.29 : 168,688,894.67 = 72,690,034.81 : x
  2. Step 2: Convert to fraction form
    122,284,937.29/168,688,894.67 = 72,690,034.81/x
  3. Step 3: Cross multiply
    122,284,937.29x = 168,688,894.67 × 72,690,034.81
  4. Step 4: Simplify right side
    122,284,937.29x = 12,262,001,625,259,274
  5. Step 5: Solve for x
    x = 12,262,001,625,259,274/122,284,937.29
  6. Step 6: Final answer
    x = 100,274,014.91

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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.