Home / 90,870,177.57-125,400,349.04-49,616,774.70

Finding the Fourth Proportional to 90,870,177.57, 125,400,349.04 and 49,616,774.70

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Solution

The fourth proportional to 90,870,177.57, 125,400,349.04 and 49,616,774.70 is: 68,470,878.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,870,177.57 : 125,400,349.04 = 49,616,774.70 : x
  2. Step 2: Convert to fraction form
    90,870,177.57/125,400,349.04 = 49,616,774.70/x
  3. Step 3: Cross multiply
    90,870,177.57x = 125,400,349.04 × 49,616,774.70
  4. Step 4: Simplify right side
    90,870,177.57x = 6,221,960,865,370,958
  5. Step 5: Solve for x
    x = 6,221,960,865,370,958/90,870,177.57
  6. Step 6: Final answer
    x = 68,470,878.25

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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.