Home / 137,515,812.41-189,775,411.31-75,637,774.82

Finding the Fourth Proportional to 137,515,812.41, 189,775,411.31 and 75,637,774.82

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Solution

The fourth proportional to 137,515,812.41, 189,775,411.31 and 75,637,774.82 is: 104,382,103.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,515,812.41 : 189,775,411.31 = 75,637,774.82 : x
  2. Step 2: Convert to fraction form
    137,515,812.41/189,775,411.31 = 75,637,774.82/x
  3. Step 3: Cross multiply
    137,515,812.41x = 189,775,411.31 × 75,637,774.82
  4. Step 4: Simplify right side
    137,515,812.41x = 14,354,189,827,702,196
  5. Step 5: Solve for x
    x = 14,354,189,827,702,196/137,515,812.41
  6. Step 6: Final answer
    x = 104,382,103.96

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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.