Home / 1,443,148,082.40-1,991,549,817.44-783,098,360.48

Finding the Fourth Proportional to 1,443,148,082.40, 1,991,549,817.44 and 783,098,360.48

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Solution

The fourth proportional to 1,443,148,082.40, 1,991,549,817.44 and 783,098,360.48 is: 1,080,678,702.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,443,148,082.40 : 1,991,549,817.44 = 783,098,360.48 : x
  2. Step 2: Convert to fraction form
    1,443,148,082.40/1,991,549,817.44 = 783,098,360.48/x
  3. Step 3: Cross multiply
    1,443,148,082.40x = 1,991,549,817.44 × 783,098,360.48
  4. Step 4: Simplify right side
    1,443,148,082.40x = 1,559,579,396,851,507,456
  5. Step 5: Solve for x
    x = 1,559,579,396,851,507,456/1,443,148,082.40
  6. Step 6: Final answer
    x = 1,080,678,702.26

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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.