Home / 124,843,250.40-187,218,424.80-42,939,139.20

Finding the Fourth Proportional to 124,843,250.40, 187,218,424.80 and 42,939,139.20

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Solution

The fourth proportional to 124,843,250.40, 187,218,424.80 and 42,939,139.20 is: 64,392,732.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,843,250.40 : 187,218,424.80 = 42,939,139.20 : x
  2. Step 2: Convert to fraction form
    124,843,250.40/187,218,424.80 = 42,939,139.20/x
  3. Step 3: Cross multiply
    124,843,250.40x = 187,218,424.80 × 42,939,139.20
  4. Step 4: Simplify right side
    124,843,250.40x = 8,038,998,003,291,933
  5. Step 5: Solve for x
    x = 8,038,998,003,291,933/124,843,250.40
  6. Step 6: Final answer
    x = 64,392,732.31

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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.