Home / 289,935,829.80-400,111,504.32-159,555,637.80

Finding the Fourth Proportional to 289,935,829.80, 400,111,504.32 and 159,555,637.80

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Solution

The fourth proportional to 289,935,829.80, 400,111,504.32 and 159,555,637.80 is: 220,186,812.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,935,829.80 : 400,111,504.32 = 159,555,637.80 : x
  2. Step 2: Convert to fraction form
    289,935,829.80/400,111,504.32 = 159,555,637.80/x
  3. Step 3: Cross multiply
    289,935,829.80x = 400,111,504.32 × 159,555,637.80
  4. Step 4: Simplify right side
    289,935,829.80x = 63,840,046,262,895,056
  5. Step 5: Solve for x
    x = 63,840,046,262,895,056/289,935,829.80
  6. Step 6: Final answer
    x = 220,186,812.74

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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.