Home / 38,478,129.98-53,099,870.65-20,837,062.94

Finding the Fourth Proportional to 38,478,129.98, 53,099,870.65 and 20,837,062.94

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Solution

The fourth proportional to 38,478,129.98, 53,099,870.65 and 20,837,062.94 is: 28,755,174.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,478,129.98 : 53,099,870.65 = 20,837,062.94 : x
  2. Step 2: Convert to fraction form
    38,478,129.98/53,099,870.65 = 20,837,062.94/x
  3. Step 3: Cross multiply
    38,478,129.98x = 53,099,870.65 × 20,837,062.94
  4. Step 4: Simplify right side
    38,478,129.98x = 1,106,445,346,522,316.62
  5. Step 5: Solve for x
    x = 1,106,445,346,522,316.62/38,478,129.98
  6. Step 6: Final answer
    x = 28,755,174.62

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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.