Home / 1,238,905,650.29-1,858,638,447.27-409,857,332.19

Finding the Fourth Proportional to 1,238,905,650.29, 1,858,638,447.27 and 409,857,332.19

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Solution

The fourth proportional to 1,238,905,650.29, 1,858,638,447.27 and 409,857,332.19 is: 614,878,619.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,905,650.29 : 1,858,638,447.27 = 409,857,332.19 : x
  2. Step 2: Convert to fraction form
    1,238,905,650.29/1,858,638,447.27 = 409,857,332.19/x
  3. Step 3: Cross multiply
    1,238,905,650.29x = 1,858,638,447.27 × 409,857,332.19
  4. Step 4: Simplify right side
    1,238,905,650.29x = 761,776,595,503,846,144
  5. Step 5: Solve for x
    x = 761,776,595,503,846,144/1,238,905,650.29
  6. Step 6: Final answer
    x = 614,878,619.15

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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.