Home / 1,310,918,763.86-1,809,068,619.96-708,089,384.19

Finding the Fourth Proportional to 1,310,918,763.86, 1,809,068,619.96 and 708,089,384.19

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Solution

The fourth proportional to 1,310,918,763.86, 1,809,068,619.96 and 708,089,384.19 is: 977,163,742.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310,918,763.86 : 1,809,068,619.96 = 708,089,384.19 : x
  2. Step 2: Convert to fraction form
    1,310,918,763.86/1,809,068,619.96 = 708,089,384.19/x
  3. Step 3: Cross multiply
    1,310,918,763.86x = 1,809,068,619.96 × 708,089,384.19
  4. Step 4: Simplify right side
    1,310,918,763.86x = 1,280,982,285,052,343,552
  5. Step 5: Solve for x
    x = 1,280,982,285,052,343,552/1,310,918,763.86
  6. Step 6: Final answer
    x = 977,163,742.23

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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.