Home / 1,279,201,095.42-1,913,262,365.78-753,316,643.37

Finding the Fourth Proportional to 1,279,201,095.42, 1,913,262,365.78 and 753,316,643.37

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Solution

The fourth proportional to 1,279,201,095.42, 1,913,262,365.78 and 753,316,643.37 is: 1,126,712,905.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,201,095.42 : 1,913,262,365.78 = 753,316,643.37 : x
  2. Step 2: Convert to fraction form
    1,279,201,095.42/1,913,262,365.78 = 753,316,643.37/x
  3. Step 3: Cross multiply
    1,279,201,095.42x = 1,913,262,365.78 × 753,316,643.37
  4. Step 4: Simplify right side
    1,279,201,095.42x = 1,441,292,383,286,004,736
  5. Step 5: Solve for x
    x = 1,441,292,383,286,004,736/1,279,201,095.42
  6. Step 6: Final answer
    x = 1,126,712,905.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.