Home / 127,278,486.88-190,925,275.60-39,856,354.88

Finding the Fourth Proportional to 127,278,486.88, 190,925,275.60 and 39,856,354.88

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Solution

The fourth proportional to 127,278,486.88, 190,925,275.60 and 39,856,354.88 is: 59,786,895.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,278,486.88 : 190,925,275.60 = 39,856,354.88 : x
  2. Step 2: Convert to fraction form
    127,278,486.88/190,925,275.60 = 39,856,354.88/x
  3. Step 3: Cross multiply
    127,278,486.88x = 190,925,275.60 × 39,856,354.88
  4. Step 4: Simplify right side
    127,278,486.88x = 7,609,585,539,875,405
  5. Step 5: Solve for x
    x = 7,609,585,539,875,405/127,278,486.88
  6. Step 6: Final answer
    x = 59,786,895.07

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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.