Home / 90,288,621.58-124,605,982.26-51,137,363.11

Finding the Fourth Proportional to 90,288,621.58, 124,605,982.26 and 51,137,363.11

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Solution

The fourth proportional to 90,288,621.58, 124,605,982.26 and 51,137,363.11 is: 70,573,913.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,288,621.58 : 124,605,982.26 = 51,137,363.11 : x
  2. Step 2: Convert to fraction form
    90,288,621.58/124,605,982.26 = 51,137,363.11/x
  3. Step 3: Cross multiply
    90,288,621.58x = 124,605,982.26 × 51,137,363.11
  4. Step 4: Simplify right side
    90,288,621.58x = 6,372,021,360,507,839
  5. Step 5: Solve for x
    x = 6,372,021,360,507,839/90,288,621.58
  6. Step 6: Final answer
    x = 70,573,913.40

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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.