Home / 137,898,078.22-190,300,631.58-76,020,631.12

Finding the Fourth Proportional to 137,898,078.22, 190,300,631.58 and 76,020,631.12

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Solution

The fourth proportional to 137,898,078.22, 190,300,631.58 and 76,020,631.12 is: 104,909,178.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,898,078.22 : 190,300,631.58 = 76,020,631.12 : x
  2. Step 2: Convert to fraction form
    137,898,078.22/190,300,631.58 = 76,020,631.12/x
  3. Step 3: Cross multiply
    137,898,078.22x = 190,300,631.58 × 76,020,631.12
  4. Step 4: Simplify right side
    137,898,078.22x = 14,466,774,115,246,204
  5. Step 5: Solve for x
    x = 14,466,774,115,246,204/137,898,078.22
  6. Step 6: Final answer
    x = 104,909,178.59

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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.