Home / 90,383,999.40-135,575,999.10-28,973,039.40

Finding the Fourth Proportional to 90,383,999.40, 135,575,999.10 and 28,973,039.40

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Solution

The fourth proportional to 90,383,999.40, 135,575,999.10 and 28,973,039.40 is: 43,459,559.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,383,999.40 : 135,575,999.10 = 28,973,039.40 : x
  2. Step 2: Convert to fraction form
    90,383,999.40/135,575,999.10 = 28,973,039.40/x
  3. Step 3: Cross multiply
    90,383,999.40x = 135,575,999.10 × 28,973,039.40
  4. Step 4: Simplify right side
    90,383,999.40x = 3,928,048,763,618,664
  5. Step 5: Solve for x
    x = 3,928,048,763,618,664/90,383,999.40
  6. Step 6: Final answer
    x = 43,459,559.10

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1.5x scale

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.