Home / 156,970,605.40-235,539,888.90-66,103,379.80

Finding the Fourth Proportional to 156,970,605.40, 235,539,888.90 and 66,103,379.80

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Solution

The fourth proportional to 156,970,605.40, 235,539,888.90 and 66,103,379.80 is: 99,190,435.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,970,605.40 : 235,539,888.90 = 66,103,379.80 : x
  2. Step 2: Convert to fraction form
    156,970,605.40/235,539,888.90 = 66,103,379.80/x
  3. Step 3: Cross multiply
    156,970,605.40x = 235,539,888.90 × 66,103,379.80
  4. Step 4: Simplify right side
    156,970,605.40x = 15,569,982,734,006,504
  5. Step 5: Solve for x
    x = 15,569,982,734,006,504/156,970,605.40
  6. Step 6: Final answer
    x = 99,190,435.65

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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.