Home / 139,365,654.66-209,048,814.36-42,322,092.12

Finding the Fourth Proportional to 139,365,654.66, 209,048,814.36 and 42,322,092.12

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Solution

The fourth proportional to 139,365,654.66, 209,048,814.36 and 42,322,092.12 is: 63,483,239.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,365,654.66 : 209,048,814.36 = 42,322,092.12 : x
  2. Step 2: Convert to fraction form
    139,365,654.66/209,048,814.36 = 42,322,092.12/x
  3. Step 3: Cross multiply
    139,365,654.66x = 209,048,814.36 × 42,322,092.12
  4. Step 4: Simplify right side
    139,365,654.66x = 8,847,383,178,920,699
  5. Step 5: Solve for x
    x = 8,847,383,178,920,699/139,365,654.66
  6. Step 6: Final answer
    x = 63,483,239.11

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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.