Home / 138,137,115-190,629,827.57-76,257,962.04

Finding the Fourth Proportional to 138,137,115, 190,629,827.57 and 76,257,962.04

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Solution

The fourth proportional to 138,137,115, 190,629,827.57 and 76,257,962.04 is: 105,236,323.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,137,115 : 190,629,827.57 = 76,257,962.04 : x
  2. Step 2: Convert to fraction form
    138,137,115/190,629,827.57 = 76,257,962.04/x
  3. Step 3: Cross multiply
    138,137,115x = 190,629,827.57 × 76,257,962.04
  4. Step 4: Simplify right side
    138,137,115x = 14,537,042,154,143,516
  5. Step 5: Solve for x
    x = 14,537,042,154,143,516/138,137,115
  6. Step 6: Final answer
    x = 105,236,323.74

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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.