Home / 1,264,978,478.44-1,745,574,988.26-769,886,468.20

Finding the Fourth Proportional to 1,264,978,478.44, 1,745,574,988.26 and 769,886,468.20

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Solution

The fourth proportional to 1,264,978,478.44, 1,745,574,988.26 and 769,886,468.20 is: 1,062,385,317.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,264,978,478.44 : 1,745,574,988.26 = 769,886,468.20 : x
  2. Step 2: Convert to fraction form
    1,264,978,478.44/1,745,574,988.26 = 769,886,468.20/x
  3. Step 3: Cross multiply
    1,264,978,478.44x = 1,745,574,988.26 × 769,886,468.20
  4. Step 4: Simplify right side
    1,264,978,478.44x = 1,343,894,562,689,747,968
  5. Step 5: Solve for x
    x = 1,343,894,562,689,747,968/1,264,978,478.44
  6. Step 6: Final answer
    x = 1,062,385,317.69

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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.