Home / 90,465,940.80-135,698,911.20-25,768,903.95

Finding the Fourth Proportional to 90,465,940.80, 135,698,911.20 and 25,768,903.95

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Solution

The fourth proportional to 90,465,940.80, 135,698,911.20 and 25,768,903.95 is: 38,653,355.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,465,940.80 : 135,698,911.20 = 25,768,903.95 : x
  2. Step 2: Convert to fraction form
    90,465,940.80/135,698,911.20 = 25,768,903.95/x
  3. Step 3: Cross multiply
    90,465,940.80x = 135,698,911.20 × 25,768,903.95
  4. Step 4: Simplify right side
    90,465,940.80x = 3,496,812,208,832,379
  5. Step 5: Solve for x
    x = 3,496,812,208,832,379/90,465,940.80
  6. Step 6: Final answer
    x = 38,653,355.93

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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.