Home / 118,546,681.20-177,820,021.80-77,863,232.40

Finding the Fourth Proportional to 118,546,681.20, 177,820,021.80 and 77,863,232.40

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Solution

The fourth proportional to 118,546,681.20, 177,820,021.80 and 77,863,232.40 is: 116,794,848.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,546,681.20 : 177,820,021.80 = 77,863,232.40 : x
  2. Step 2: Convert to fraction form
    118,546,681.20/177,820,021.80 = 77,863,232.40/x
  3. Step 3: Cross multiply
    118,546,681.20x = 177,820,021.80 × 77,863,232.40
  4. Step 4: Simplify right side
    118,546,681.20x = 13,845,641,682,786,468
  5. Step 5: Solve for x
    x = 13,845,641,682,786,468/118,546,681.20
  6. Step 6: Final answer
    x = 116,794,848.60

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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.