Home / 124,685,999.20-187,028,998.80-51,878,582.20

Finding the Fourth Proportional to 124,685,999.20, 187,028,998.80 and 51,878,582.20

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Solution

The fourth proportional to 124,685,999.20, 187,028,998.80 and 51,878,582.20 is: 77,817,873.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,685,999.20 : 187,028,998.80 = 51,878,582.20 : x
  2. Step 2: Convert to fraction form
    124,685,999.20/187,028,998.80 = 51,878,582.20/x
  3. Step 3: Cross multiply
    124,685,999.20x = 187,028,998.80 × 51,878,582.20
  4. Step 4: Simplify right side
    124,685,999.20x = 9,702,799,288,029,502
  5. Step 5: Solve for x
    x = 9,702,799,288,029,502/124,685,999.20
  6. Step 6: Final answer
    x = 77,817,873.30

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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.