Home / 140,019,732.70-210,029,599.05-121,145,364.70

Finding the Fourth Proportional to 140,019,732.70, 210,029,599.05 and 121,145,364.70

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Solution

The fourth proportional to 140,019,732.70, 210,029,599.05 and 121,145,364.70 is: 181,718,047.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,019,732.70 : 210,029,599.05 = 121,145,364.70 : x
  2. Step 2: Convert to fraction form
    140,019,732.70/210,029,599.05 = 121,145,364.70/x
  3. Step 3: Cross multiply
    140,019,732.70x = 210,029,599.05 × 121,145,364.70
  4. Step 4: Simplify right side
    140,019,732.70x = 25,444,112,374,707,024
  5. Step 5: Solve for x
    x = 25,444,112,374,707,024/140,019,732.70
  6. Step 6: Final answer
    x = 181,718,047.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.