Home / 289,935,833.79-400,111,509.87-159,555,641.79

Finding the Fourth Proportional to 289,935,833.79, 400,111,509.87 and 159,555,641.79

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Solution

The fourth proportional to 289,935,833.79, 400,111,509.87 and 159,555,641.79 is: 220,186,818.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,935,833.79 : 400,111,509.87 = 159,555,641.79 : x
  2. Step 2: Convert to fraction form
    289,935,833.79/400,111,509.87 = 159,555,641.79/x
  3. Step 3: Cross multiply
    289,935,833.79x = 400,111,509.87 × 159,555,641.79
  4. Step 4: Simplify right side
    289,935,833.79x = 63,840,048,744,873,768
  5. Step 5: Solve for x
    x = 63,840,048,744,873,768/289,935,833.79
  6. Step 6: Final answer
    x = 220,186,818.27

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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.