Home / 1,238,955,393.88-1,858,494,844.19-353,772,040.72

Finding the Fourth Proportional to 1,238,955,393.88, 1,858,494,844.19 and 353,772,040.72

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Solution

The fourth proportional to 1,238,955,393.88, 1,858,494,844.19 and 353,772,040.72 is: 530,675,694.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,955,393.88 : 1,858,494,844.19 = 353,772,040.72 : x
  2. Step 2: Convert to fraction form
    1,238,955,393.88/1,858,494,844.19 = 353,772,040.72/x
  3. Step 3: Cross multiply
    1,238,955,393.88x = 1,858,494,844.19 × 353,772,040.72
  4. Step 4: Simplify right side
    1,238,955,393.88x = 657,483,513,685,633,280
  5. Step 5: Solve for x
    x = 657,483,513,685,633,280/1,238,955,393.88
  6. Step 6: Final answer
    x = 530,675,694.16

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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.