Home / 103,448,014.40-155,172,021.60-84,953,867.60

Finding the Fourth Proportional to 103,448,014.40, 155,172,021.60 and 84,953,867.60

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Solution

The fourth proportional to 103,448,014.40, 155,172,021.60 and 84,953,867.60 is: 127,430,801.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,448,014.40 : 155,172,021.60 = 84,953,867.60 : x
  2. Step 2: Convert to fraction form
    103,448,014.40/155,172,021.60 = 84,953,867.60/x
  3. Step 3: Cross multiply
    103,448,014.40x = 155,172,021.60 × 84,953,867.60
  4. Step 4: Simplify right side
    103,448,014.40x = 13,182,463,378,230,738
  5. Step 5: Solve for x
    x = 13,182,463,378,230,738/103,448,014.40
  6. Step 6: Final answer
    x = 127,430,801.40

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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.