Home / 127,872,386.40-191,682,608.40-63,186,175.20

Finding the Fourth Proportional to 127,872,386.40, 191,682,608.40 and 63,186,175.20

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Solution

The fourth proportional to 127,872,386.40, 191,682,608.40 and 63,186,175.20 is: 94,717,016.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,872,386.40 : 191,682,608.40 = 63,186,175.20 : x
  2. Step 2: Convert to fraction form
    127,872,386.40/191,682,608.40 = 63,186,175.20/x
  3. Step 3: Cross multiply
    127,872,386.40x = 191,682,608.40 × 63,186,175.20
  4. Step 4: Simplify right side
    127,872,386.40x = 12,111,690,877,155,392
  5. Step 5: Solve for x
    x = 12,111,690,877,155,392/127,872,386.40
  6. Step 6: Final answer
    x = 94,717,016.07

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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.