Home / 501,993,953.40-752,990,930.10-138,487,726.20

Finding the Fourth Proportional to 501,993,953.40, 752,990,930.10 and 138,487,726.20

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Solution

The fourth proportional to 501,993,953.40, 752,990,930.10 and 138,487,726.20 is: 207,731,589.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,993,953.40 : 752,990,930.10 = 138,487,726.20 : x
  2. Step 2: Convert to fraction form
    501,993,953.40/752,990,930.10 = 138,487,726.20/x
  3. Step 3: Cross multiply
    501,993,953.40x = 752,990,930.10 × 138,487,726.20
  4. Step 4: Simplify right side
    501,993,953.40x = 104,280,001,758,772,128
  5. Step 5: Solve for x
    x = 104,280,001,758,772,128/501,993,953.40
  6. Step 6: Final answer
    x = 207,731,589.30

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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.