Home / 787,093,628.30-1,086,216,010.74-465,497,274.03

Finding the Fourth Proportional to 787,093,628.30, 1,086,216,010.74 and 465,497,274.03

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Solution

The fourth proportional to 787,093,628.30, 1,086,216,010.74 and 465,497,274.03 is: 642,402,090.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,093,628.30 : 1,086,216,010.74 = 465,497,274.03 : x
  2. Step 2: Convert to fraction form
    787,093,628.30/1,086,216,010.74 = 465,497,274.03/x
  3. Step 3: Cross multiply
    787,093,628.30x = 1,086,216,010.74 × 465,497,274.03
  4. Step 4: Simplify right side
    787,093,628.30x = 505,630,592,003,137,920
  5. Step 5: Solve for x
    x = 505,630,592,003,137,920/787,093,628.30
  6. Step 6: Final answer
    x = 642,402,090.20

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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.