Home / 1,225,670,743.46-1,691,285,948.34-689,718,888.89

Finding the Fourth Proportional to 1,225,670,743.46, 1,691,285,948.34 and 689,718,888.89

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Solution

The fourth proportional to 1,225,670,743.46, 1,691,285,948.34 and 689,718,888.89 is: 951,733,466.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,670,743.46 : 1,691,285,948.34 = 689,718,888.89 : x
  2. Step 2: Convert to fraction form
    1,225,670,743.46/1,691,285,948.34 = 689,718,888.89/x
  3. Step 3: Cross multiply
    1,225,670,743.46x = 1,691,285,948.34 × 689,718,888.89
  4. Step 4: Simplify right side
    1,225,670,743.46x = 1,166,511,865,089,104,640
  5. Step 5: Solve for x
    x = 1,166,511,865,089,104,640/1,225,670,743.46
  6. Step 6: Final answer
    x = 951,733,466.20

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1.5x scale

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.