Home / 685,044,180-945,361,461.60-371,778,312.96

Finding the Fourth Proportional to 685,044,180, 945,361,461.60 and 371,778,312.96

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Solution

The fourth proportional to 685,044,180, 945,361,461.60 and 371,778,312.96 is: 513,054,339.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,044,180 : 945,361,461.60 = 371,778,312.96 : x
  2. Step 2: Convert to fraction form
    685,044,180/945,361,461.60 = 371,778,312.96/x
  3. Step 3: Cross multiply
    685,044,180x = 945,361,461.60 × 371,778,312.96
  4. Step 4: Simplify right side
    685,044,180x = 351,464,889,331,047,808
  5. Step 5: Solve for x
    x = 351,464,889,331,047,808/685,044,180
  6. Step 6: Final answer
    x = 513,054,339.55

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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.