Home / 707,355,288.98-976,127,406.81-405,990,204.58

Finding the Fourth Proportional to 707,355,288.98, 976,127,406.81 and 405,990,204.58

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Solution

The fourth proportional to 707,355,288.98, 976,127,406.81 and 405,990,204.58 is: 560,253,343.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,355,288.98 : 976,127,406.81 = 405,990,204.58 : x
  2. Step 2: Convert to fraction form
    707,355,288.98/976,127,406.81 = 405,990,204.58/x
  3. Step 3: Cross multiply
    707,355,288.98x = 976,127,406.81 × 405,990,204.58
  4. Step 4: Simplify right side
    707,355,288.98x = 396,298,165,582,056,128
  5. Step 5: Solve for x
    x = 396,298,165,582,056,128/707,355,288.98
  6. Step 6: Final answer
    x = 560,253,343.35

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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.