Home / 885,871,374.40-1,328,408,930.40-340,431,630.40

Finding the Fourth Proportional to 885,871,374.40, 1,328,408,930.40 and 340,431,630.40

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Solution

The fourth proportional to 885,871,374.40, 1,328,408,930.40 and 340,431,630.40 is: 510,494,447.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,871,374.40 : 1,328,408,930.40 = 340,431,630.40 : x
  2. Step 2: Convert to fraction form
    885,871,374.40/1,328,408,930.40 = 340,431,630.40/x
  3. Step 3: Cross multiply
    885,871,374.40x = 1,328,408,930.40 × 340,431,630.40
  4. Step 4: Simplify right side
    885,871,374.40x = 452,232,418,013,992,128
  5. Step 5: Solve for x
    x = 452,232,418,013,992,128/885,871,374.40
  6. Step 6: Final answer
    x = 510,494,447.71

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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.