Home / 138,120,665.48-190,606,489.46-76,240,988.04

Finding the Fourth Proportional to 138,120,665.48, 190,606,489.46 and 76,240,988.04

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Solution

The fourth proportional to 138,120,665.48, 190,606,489.46 and 76,240,988.04 is: 105,212,547.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,120,665.48 : 190,606,489.46 = 76,240,988.04 : x
  2. Step 2: Convert to fraction form
    138,120,665.48/190,606,489.46 = 76,240,988.04/x
  3. Step 3: Cross multiply
    138,120,665.48x = 190,606,489.46 × 76,240,988.04
  4. Step 4: Simplify right side
    138,120,665.48x = 14,532,027,083,266,248
  5. Step 5: Solve for x
    x = 14,532,027,083,266,248/138,120,665.48
  6. Step 6: Final answer
    x = 105,212,547.54

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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.