Home / 156,970,428.40-235,539,623.40-66,103,202.80

Finding the Fourth Proportional to 156,970,428.40, 235,539,623.40 and 66,103,202.80

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Solution

The fourth proportional to 156,970,428.40, 235,539,623.40 and 66,103,202.80 is: 99,190,170.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,970,428.40 : 235,539,623.40 = 66,103,202.80 : x
  2. Step 2: Convert to fraction form
    156,970,428.40/235,539,623.40 = 66,103,202.80/x
  3. Step 3: Cross multiply
    156,970,428.40x = 235,539,623.40 × 66,103,202.80
  4. Step 4: Simplify right side
    156,970,428.40x = 15,569,923,493,045,826
  5. Step 5: Solve for x
    x = 15,569,923,493,045,826/156,970,428.40
  6. Step 6: Final answer
    x = 99,190,170.10

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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.