Home / 462,439,911.87-638,179,626.65-261,526,830.57

Finding the Fourth Proportional to 462,439,911.87, 638,179,626.65 and 261,526,830.57

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Solution

The fourth proportional to 462,439,911.87, 638,179,626.65 and 261,526,830.57 is: 360,914,122.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,439,911.87 : 638,179,626.65 = 261,526,830.57 : x
  2. Step 2: Convert to fraction form
    462,439,911.87/638,179,626.65 = 261,526,830.57/x
  3. Step 3: Cross multiply
    462,439,911.87x = 638,179,626.65 × 261,526,830.57
  4. Step 4: Simplify right side
    462,439,911.87x = 166,901,095,090,812,768
  5. Step 5: Solve for x
    x = 166,901,095,090,812,768/462,439,911.87
  6. Step 6: Final answer
    x = 360,914,122.69

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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.