Home / 830,008,001.70-1,245,012,002.55-216,592,227.45

Finding the Fourth Proportional to 830,008,001.70, 1,245,012,002.55 and 216,592,227.45

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Solution

The fourth proportional to 830,008,001.70, 1,245,012,002.55 and 216,592,227.45 is: 324,888,341.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,008,001.70 : 1,245,012,002.55 = 216,592,227.45 : x
  2. Step 2: Convert to fraction form
    830,008,001.70/1,245,012,002.55 = 216,592,227.45/x
  3. Step 3: Cross multiply
    830,008,001.70x = 1,245,012,002.55 × 216,592,227.45
  4. Step 4: Simplify right side
    830,008,001.70x = 269,659,922,834,289,568
  5. Step 5: Solve for x
    x = 269,659,922,834,289,568/830,008,001.70
  6. Step 6: Final answer
    x = 324,888,341.18

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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.