Home / 1,310,918,765.64-1,809,068,622.42-708,089,385.98

Finding the Fourth Proportional to 1,310,918,765.64, 1,809,068,622.42 and 708,089,385.98

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Solution

The fourth proportional to 1,310,918,765.64, 1,809,068,622.42 and 708,089,385.98 is: 977,163,744.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310,918,765.64 : 1,809,068,622.42 = 708,089,385.98 : x
  2. Step 2: Convert to fraction form
    1,310,918,765.64/1,809,068,622.42 = 708,089,385.98/x
  3. Step 3: Cross multiply
    1,310,918,765.64x = 1,809,068,622.42 × 708,089,385.98
  4. Step 4: Simplify right side
    1,310,918,765.64x = 1,280,982,290,045,062,400
  5. Step 5: Solve for x
    x = 1,280,982,290,045,062,400/1,310,918,765.64
  6. Step 6: Final answer
    x = 977,163,744.71

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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.