Home / 100,152,270.60-138,210,945.06-55,498,988.70

Finding the Fourth Proportional to 100,152,270.60, 138,210,945.06 and 55,498,988.70

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Solution

The fourth proportional to 100,152,270.60, 138,210,945.06 and 55,498,988.70 is: 76,589,054.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,152,270.60 : 138,210,945.06 = 55,498,988.70 : x
  2. Step 2: Convert to fraction form
    100,152,270.60/138,210,945.06 = 55,498,988.70/x
  3. Step 3: Cross multiply
    100,152,270.60x = 138,210,945.06 × 55,498,988.70
  4. Step 4: Simplify right side
    100,152,270.60x = 7,670,567,678,101,261
  5. Step 5: Solve for x
    x = 7,670,567,678,101,261/100,152,270.60
  6. Step 6: Final answer
    x = 76,589,054.17

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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.