Home / 685,379,752,545.52-945,811,334,384.06-376,724,513,210.84

Finding the Fourth Proportional to 685,379,752,545.52, 945,811,334,384.06 and 376,724,513,210.84

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Solution

The fourth proportional to 685,379,752,545.52, 945,811,334,384.06 and 376,724,513,210.84 is: 519,872,834,310.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,379,752,545.52 : 945,811,334,384.06 = 376,724,513,210.84 : x
  2. Step 2: Convert to fraction form
    685,379,752,545.52/945,811,334,384.06 = 376,724,513,210.84/x
  3. Step 3: Cross multiply
    685,379,752,545.52x = 945,811,334,384.06 × 376,724,513,210.84
  4. Step 4: Simplify right side
    685,379,752,545.52x = 356,310,314,535,130,090,176,512
  5. Step 5: Solve for x
    x = 356,310,314,535,130,090,176,512/685,379,752,545.52
  6. Step 6: Final answer
    x = 519,872,834,310.88

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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.