Home / 127,852,853.14-176,484,918.05-83,802,690.78

Finding the Fourth Proportional to 127,852,853.14, 176,484,918.05 and 83,802,690.78

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Solution

The fourth proportional to 127,852,853.14, 176,484,918.05 and 83,802,690.78 is: 115,679,162.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,852,853.14 : 176,484,918.05 = 83,802,690.78 : x
  2. Step 2: Convert to fraction form
    127,852,853.14/176,484,918.05 = 83,802,690.78/x
  3. Step 3: Cross multiply
    127,852,853.14x = 176,484,918.05 × 83,802,690.78
  4. Step 4: Simplify right side
    127,852,853.14x = 14,789,911,014,677,792
  5. Step 5: Solve for x
    x = 14,789,911,014,677,792/127,852,853.14
  6. Step 6: Final answer
    x = 115,679,162.81

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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.