Home / 84,269,146-116,291,421.60-45,637,978

Finding the Fourth Proportional to 84,269,146, 116,291,421.60 and 45,637,978

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Solution

The fourth proportional to 84,269,146, 116,291,421.60 and 45,637,978 is: 62,980,409.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,269,146 : 116,291,421.60 = 45,637,978 : x
  2. Step 2: Convert to fraction form
    84,269,146/116,291,421.60 = 45,637,978/x
  3. Step 3: Cross multiply
    84,269,146x = 116,291,421.60 × 45,637,978
  4. Step 4: Simplify right side
    84,269,146x = 5,307,305,340,569,525
  5. Step 5: Solve for x
    x = 5,307,305,340,569,525/84,269,146
  6. Step 6: Final answer
    x = 62,980,409.70

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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.