Home / 127,584,020.40-191,376,030.60-76,439,713.20

Finding the Fourth Proportional to 127,584,020.40, 191,376,030.60 and 76,439,713.20

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Solution

The fourth proportional to 127,584,020.40, 191,376,030.60 and 76,439,713.20 is: 114,659,569.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,584,020.40 : 191,376,030.60 = 76,439,713.20 : x
  2. Step 2: Convert to fraction form
    127,584,020.40/191,376,030.60 = 76,439,713.20/x
  3. Step 3: Cross multiply
    127,584,020.40x = 191,376,030.60 × 76,439,713.20
  4. Step 4: Simplify right side
    127,584,020.40x = 14,628,728,892,418,424
  5. Step 5: Solve for x
    x = 14,628,728,892,418,424/127,584,020.40
  6. Step 6: Final answer
    x = 114,659,569.80

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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.