Home / 256,562,672.70-384,396,111.45-220,730,864.70

Finding the Fourth Proportional to 256,562,672.70, 384,396,111.45 and 220,730,864.70

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Solution

The fourth proportional to 256,562,672.70, 384,396,111.45 and 220,730,864.70 is: 330,710,953.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,562,672.70 : 384,396,111.45 = 220,730,864.70 : x
  2. Step 2: Convert to fraction form
    256,562,672.70/384,396,111.45 = 220,730,864.70/x
  3. Step 3: Cross multiply
    256,562,672.70x = 384,396,111.45 × 220,730,864.70
  4. Step 4: Simplify right side
    256,562,672.70x = 84,848,086,067,676,064
  5. Step 5: Solve for x
    x = 84,848,086,067,676,064/256,562,672.70
  6. Step 6: Final answer
    x = 330,710,953.29

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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.