Home / 72,757,032.40-109,135,548.60-36,371,038.60

Finding the Fourth Proportional to 72,757,032.40, 109,135,548.60 and 36,371,038.60

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Solution

The fourth proportional to 72,757,032.40, 109,135,548.60 and 36,371,038.60 is: 54,556,557.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,757,032.40 : 109,135,548.60 = 36,371,038.60 : x
  2. Step 2: Convert to fraction form
    72,757,032.40/109,135,548.60 = 36,371,038.60/x
  3. Step 3: Cross multiply
    72,757,032.40x = 109,135,548.60 × 36,371,038.60
  4. Step 4: Simplify right side
    72,757,032.40x = 3,969,373,250,762,776
  5. Step 5: Solve for x
    x = 3,969,373,250,762,776/72,757,032.40
  6. Step 6: Final answer
    x = 54,556,557.90

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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.