Home / 113,387,266.70-156,390,880.04-85,511,150.31

Finding the Fourth Proportional to 113,387,266.70, 156,390,880.04 and 85,511,150.31

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Solution

The fourth proportional to 113,387,266.70, 156,390,880.04 and 85,511,150.31 is: 117,942,379.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,387,266.70 : 156,390,880.04 = 85,511,150.31 : x
  2. Step 2: Convert to fraction form
    113,387,266.70/156,390,880.04 = 85,511,150.31/x
  3. Step 3: Cross multiply
    113,387,266.70x = 156,390,880.04 × 85,511,150.31
  4. Step 4: Simplify right side
    113,387,266.70x = 13,373,164,049,786,064
  5. Step 5: Solve for x
    x = 13,373,164,049,786,064/113,387,266.70
  6. Step 6: Final answer
    x = 117,942,379.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.