Home / 1,738,387,081.34-2,608,742,998.76-742,640,814.21

Finding the Fourth Proportional to 1,738,387,081.34, 2,608,742,998.76 and 742,640,814.21

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Solution

The fourth proportional to 1,738,387,081.34, 2,608,742,998.76 and 742,640,814.21 is: 1,114,457,789.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,738,387,081.34 : 2,608,742,998.76 = 742,640,814.21 : x
  2. Step 2: Convert to fraction form
    1,738,387,081.34/2,608,742,998.76 = 742,640,814.21/x
  3. Step 3: Cross multiply
    1,738,387,081.34x = 2,608,742,998.76 × 742,640,814.21
  4. Step 4: Simplify right side
    1,738,387,081.34x = 1,937,359,024,669,833,216
  5. Step 5: Solve for x
    x = 1,937,359,024,669,833,216/1,738,387,081.34
  6. Step 6: Final answer
    x = 1,114,457,789.91

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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.