Home / 139,968,412.70-209,952,619.05-49,092,001.70

Finding the Fourth Proportional to 139,968,412.70, 209,952,619.05 and 49,092,001.70

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Solution

The fourth proportional to 139,968,412.70, 209,952,619.05 and 49,092,001.70 is: 73,638,002.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,412.70 : 209,952,619.05 = 49,092,001.70 : x
  2. Step 2: Convert to fraction form
    139,968,412.70/209,952,619.05 = 49,092,001.70/x
  3. Step 3: Cross multiply
    139,968,412.70x = 209,952,619.05 × 49,092,001.70
  4. Step 4: Simplify right side
    139,968,412.70x = 10,306,994,331,322,054
  5. Step 5: Solve for x
    x = 10,306,994,331,322,054/139,968,412.70
  6. Step 6: Final answer
    x = 73,638,002.55

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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.