Home / 1,120,154,842.60-1,680,232,263.90-969,159,898.60

Finding the Fourth Proportional to 1,120,154,842.60, 1,680,232,263.90 and 969,159,898.60

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Solution

The fourth proportional to 1,120,154,842.60, 1,680,232,263.90 and 969,159,898.60 is: 1,453,739,847.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,154,842.60 : 1,680,232,263.90 = 969,159,898.60 : x
  2. Step 2: Convert to fraction form
    1,120,154,842.60/1,680,232,263.90 = 969,159,898.60/x
  3. Step 3: Cross multiply
    1,120,154,842.60x = 1,680,232,263.90 × 969,159,898.60
  4. Step 4: Simplify right side
    1,120,154,842.60x = 1,628,413,730,505,772,544
  5. Step 5: Solve for x
    x = 1,628,413,730,505,772,544/1,120,154,842.60
  6. Step 6: Final answer
    x = 1,453,739,847.90

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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.