Home / 142,946,371.88-213,878,466.06-84,685,319.48

Finding the Fourth Proportional to 142,946,371.88, 213,878,466.06 and 84,685,319.48

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Solution

The fourth proportional to 142,946,371.88, 213,878,466.06 and 84,685,319.48 is: 126,707,421.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,946,371.88 : 213,878,466.06 = 84,685,319.48 : x
  2. Step 2: Convert to fraction form
    142,946,371.88/213,878,466.06 = 84,685,319.48/x
  3. Step 3: Cross multiply
    142,946,371.88x = 213,878,466.06 × 84,685,319.48
  4. Step 4: Simplify right side
    142,946,371.88x = 18,112,366,228,183,436
  5. Step 5: Solve for x
    x = 18,112,366,228,183,436/142,946,371.88
  6. Step 6: Final answer
    x = 126,707,421.74

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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.