Home / 1,487,481,081.92-2,232,619,540.80-778,938,211.88

Finding the Fourth Proportional to 1,487,481,081.92, 2,232,619,540.80 and 778,938,211.88

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Solution

The fourth proportional to 1,487,481,081.92, 2,232,619,540.80 and 778,938,211.88 is: 1,169,139,355.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,487,481,081.92 : 2,232,619,540.80 = 778,938,211.88 : x
  2. Step 2: Convert to fraction form
    1,487,481,081.92/2,232,619,540.80 = 778,938,211.88/x
  3. Step 3: Cross multiply
    1,487,481,081.92x = 2,232,619,540.80 × 778,938,211.88
  4. Step 4: Simplify right side
    1,487,481,081.92x = 1,739,072,672,919,098,880
  5. Step 5: Solve for x
    x = 1,739,072,672,919,098,880/1,487,481,081.92
  6. Step 6: Final answer
    x = 1,169,139,355.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.