Home / 1,016,748,990.72-1,403,001,329.40-570,610,023.84

Finding the Fourth Proportional to 1,016,748,990.72, 1,403,001,329.40 and 570,610,023.84

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Solution

The fourth proportional to 1,016,748,990.72, 1,403,001,329.40 and 570,610,023.84 is: 787,378,821.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,016,748,990.72 : 1,403,001,329.40 = 570,610,023.84 : x
  2. Step 2: Convert to fraction form
    1,016,748,990.72/1,403,001,329.40 = 570,610,023.84/x
  3. Step 3: Cross multiply
    1,016,748,990.72x = 1,403,001,329.40 × 570,610,023.84
  4. Step 4: Simplify right side
    1,016,748,990.72x = 800,566,622,016,485,760
  5. Step 5: Solve for x
    x = 800,566,622,016,485,760/1,016,748,990.72
  6. Step 6: Final answer
    x = 787,378,821.44

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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.