Home / 118,492,797.89-163,448,560.05-78,259,040.03

Finding the Fourth Proportional to 118,492,797.89, 163,448,560.05 and 78,259,040.03

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Solution

The fourth proportional to 118,492,797.89, 163,448,560.05 and 78,259,040.03 is: 107,950,252.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,492,797.89 : 163,448,560.05 = 78,259,040.03 : x
  2. Step 2: Convert to fraction form
    118,492,797.89/163,448,560.05 = 78,259,040.03/x
  3. Step 3: Cross multiply
    118,492,797.89x = 163,448,560.05 × 78,259,040.03
  4. Step 4: Simplify right side
    118,492,797.89x = 12,791,327,403,798,810
  5. Step 5: Solve for x
    x = 12,791,327,403,798,810/118,492,797.89
  6. Step 6: Final answer
    x = 107,950,252.10

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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.