Home / 685,044,181.50-945,361,463.67-371,778,314.46

Finding the Fourth Proportional to 685,044,181.50, 945,361,463.67 and 371,778,314.46

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Solution

The fourth proportional to 685,044,181.50, 945,361,463.67 and 371,778,314.46 is: 513,054,341.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,044,181.50 : 945,361,463.67 = 371,778,314.46 : x
  2. Step 2: Convert to fraction form
    685,044,181.50/945,361,463.67 = 371,778,314.46/x
  3. Step 3: Cross multiply
    685,044,181.50x = 945,361,463.67 × 371,778,314.46
  4. Step 4: Simplify right side
    685,044,181.50x = 351,464,891,518,671,104
  5. Step 5: Solve for x
    x = 351,464,891,518,671,104/685,044,181.50
  6. Step 6: Final answer
    x = 513,054,341.62

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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.