Home / 19,907,337.60-29,861,006.40-7,128,259.20

Finding the Fourth Proportional to 19,907,337.60, 29,861,006.40 and 7,128,259.20

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Solution

The fourth proportional to 19,907,337.60, 29,861,006.40 and 7,128,259.20 is: 10,692,388.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,907,337.60 : 29,861,006.40 = 7,128,259.20 : x
  2. Step 2: Convert to fraction form
    19,907,337.60/29,861,006.40 = 7,128,259.20/x
  3. Step 3: Cross multiply
    19,907,337.60x = 29,861,006.40 × 7,128,259.20
  4. Step 4: Simplify right side
    19,907,337.60x = 212,856,993,592,058.88
  5. Step 5: Solve for x
    x = 212,856,993,592,058.88/19,907,337.60
  6. Step 6: Final answer
    x = 10,692,388.80

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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.