Home / 90,989,255.40-136,483,883.10-56,551,878.60

Finding the Fourth Proportional to 90,989,255.40, 136,483,883.10 and 56,551,878.60

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Solution

The fourth proportional to 90,989,255.40, 136,483,883.10 and 56,551,878.60 is: 84,827,817.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,989,255.40 : 136,483,883.10 = 56,551,878.60 : x
  2. Step 2: Convert to fraction form
    90,989,255.40/136,483,883.10 = 56,551,878.60/x
  3. Step 3: Cross multiply
    90,989,255.40x = 136,483,883.10 × 56,551,878.60
  4. Step 4: Simplify right side
    90,989,255.40x = 7,718,419,987,927,792
  5. Step 5: Solve for x
    x = 7,718,419,987,927,792/90,989,255.40
  6. Step 6: Final answer
    x = 84,827,817.90

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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.