Home / 289,935,832.29-400,111,507.80-159,555,640.29

Finding the Fourth Proportional to 289,935,832.29, 400,111,507.80 and 159,555,640.29

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Solution

The fourth proportional to 289,935,832.29, 400,111,507.80 and 159,555,640.29 is: 220,186,816.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,935,832.29 : 400,111,507.80 = 159,555,640.29 : x
  2. Step 2: Convert to fraction form
    289,935,832.29/400,111,507.80 = 159,555,640.29/x
  3. Step 3: Cross multiply
    289,935,832.29x = 400,111,507.80 × 159,555,640.29
  4. Step 4: Simplify right side
    289,935,832.29x = 63,840,047,814,426,328
  5. Step 5: Solve for x
    x = 63,840,047,814,426,328/289,935,832.29
  6. Step 6: Final answer
    x = 220,186,816.20

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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.