Home / 142,446,133.60-213,669,200.40-85,003,266.40

Finding the Fourth Proportional to 142,446,133.60, 213,669,200.40 and 85,003,266.40

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Solution

The fourth proportional to 142,446,133.60, 213,669,200.40 and 85,003,266.40 is: 127,504,899.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,446,133.60 : 213,669,200.40 = 85,003,266.40 : x
  2. Step 2: Convert to fraction form
    142,446,133.60/213,669,200.40 = 85,003,266.40/x
  3. Step 3: Cross multiply
    142,446,133.60x = 213,669,200.40 × 85,003,266.40
  4. Step 4: Simplify right side
    142,446,133.60x = 18,162,579,963,076,188
  5. Step 5: Solve for x
    x = 18,162,579,963,076,188/142,446,133.60
  6. Step 6: Final answer
    x = 127,504,899.60

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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.