Home / 85,973,405.60-128,930,002.80-25,373,085.60

Finding the Fourth Proportional to 85,973,405.60, 128,930,002.80 and 25,373,085.60

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Solution

The fourth proportional to 85,973,405.60, 128,930,002.80 and 25,373,085.60 is: 38,050,743.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,973,405.60 : 128,930,002.80 = 25,373,085.60 : x
  2. Step 2: Convert to fraction form
    85,973,405.60/128,930,002.80 = 25,373,085.60/x
  3. Step 3: Cross multiply
    85,973,405.60x = 128,930,002.80 × 25,373,085.60
  4. Step 4: Simplify right side
    85,973,405.60x = 3,271,351,997,452,640
  5. Step 5: Solve for x
    x = 3,271,351,997,452,640/85,973,405.60
  6. Step 6: Final answer
    x = 38,050,743.42

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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.