Home / 1,188,162,530.96-1,782,241,345.88-670,357,912.72

Finding the Fourth Proportional to 1,188,162,530.96, 1,782,241,345.88 and 670,357,912.72

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Solution

The fourth proportional to 1,188,162,530.96, 1,782,241,345.88 and 670,357,912.72 is: 1,005,535,486.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,162,530.96 : 1,782,241,345.88 = 670,357,912.72 : x
  2. Step 2: Convert to fraction form
    1,188,162,530.96/1,782,241,345.88 = 670,357,912.72/x
  3. Step 3: Cross multiply
    1,188,162,530.96x = 1,782,241,345.88 × 670,357,912.72
  4. Step 4: Simplify right side
    1,188,162,530.96x = 1,194,739,588,587,400,448
  5. Step 5: Solve for x
    x = 1,194,739,588,587,400,448/1,188,162,530.96
  6. Step 6: Final answer
    x = 1,005,535,486.48

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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.