Home / 1,386,860,993.96-1,913,867,709.72-760,315,969.64

Finding the Fourth Proportional to 1,386,860,993.96, 1,913,867,709.72 and 760,315,969.64

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Solution

The fourth proportional to 1,386,860,993.96, 1,913,867,709.72 and 760,315,969.64 is: 1,049,235,784.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,860,993.96 : 1,913,867,709.72 = 760,315,969.64 : x
  2. Step 2: Convert to fraction form
    1,386,860,993.96/1,913,867,709.72 = 760,315,969.64/x
  3. Step 3: Cross multiply
    1,386,860,993.96x = 1,913,867,709.72 × 760,315,969.64
  4. Step 4: Simplify right side
    1,386,860,993.96x = 1,455,144,183,478,447,872
  5. Step 5: Solve for x
    x = 1,455,144,183,478,447,872/1,386,860,993.96
  6. Step 6: Final answer
    x = 1,049,235,784.85

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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.