Home / 140,863,899.20-211,295,848.80-38,638,270.40

Finding the Fourth Proportional to 140,863,899.20, 211,295,848.80 and 38,638,270.40

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Solution

The fourth proportional to 140,863,899.20, 211,295,848.80 and 38,638,270.40 is: 57,957,405.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,863,899.20 : 211,295,848.80 = 38,638,270.40 : x
  2. Step 2: Convert to fraction form
    140,863,899.20/211,295,848.80 = 38,638,270.40/x
  3. Step 3: Cross multiply
    140,863,899.20x = 211,295,848.80 × 38,638,270.40
  4. Step 4: Simplify right side
    140,863,899.20x = 8,164,106,140,331,916
  5. Step 5: Solve for x
    x = 8,164,106,140,331,916/140,863,899.20
  6. Step 6: Final answer
    x = 57,957,405.60

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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.