Home / 991,415,313.90-1,368,145,567.62-545,369,072.58

Finding the Fourth Proportional to 991,415,313.90, 1,368,145,567.62 and 545,369,072.58

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Solution

The fourth proportional to 991,415,313.90, 1,368,145,567.62 and 545,369,072.58 is: 752,605,158.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,415,313.90 : 1,368,145,567.62 = 545,369,072.58 : x
  2. Step 2: Convert to fraction form
    991,415,313.90/1,368,145,567.62 = 545,369,072.58/x
  3. Step 3: Cross multiply
    991,415,313.90x = 1,368,145,567.62 × 545,369,072.58
  4. Step 4: Simplify right side
    991,415,313.90x = 746,144,279,367,357,056
  5. Step 5: Solve for x
    x = 746,144,279,367,357,056/991,415,313.90
  6. Step 6: Final answer
    x = 752,605,158.41

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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.