Home / 90,410,420.64-124,765,503.36-49,157,312.64

Finding the Fourth Proportional to 90,410,420.64, 124,765,503.36 and 49,157,312.64

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Solution

The fourth proportional to 90,410,420.64, 124,765,503.36 and 49,157,312.64 is: 67,836,614.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,410,420.64 : 124,765,503.36 = 49,157,312.64 : x
  2. Step 2: Convert to fraction form
    90,410,420.64/124,765,503.36 = 49,157,312.64/x
  3. Step 3: Cross multiply
    90,410,420.64x = 124,765,503.36 × 49,157,312.64
  4. Step 4: Simplify right side
    90,410,420.64x = 6,133,136,855,354,491
  5. Step 5: Solve for x
    x = 6,133,136,855,354,491/90,410,420.64
  6. Step 6: Final answer
    x = 67,836,614.54

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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.