Home / 18,237,515.05-25,168,367.40-9,977,385.72

Finding the Fourth Proportional to 18,237,515.05, 25,168,367.40 and 9,977,385.72

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Solution

The fourth proportional to 18,237,515.05, 25,168,367.40 and 9,977,385.72 is: 13,769,118.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,237,515.05 : 25,168,367.40 = 9,977,385.72 : x
  2. Step 2: Convert to fraction form
    18,237,515.05/25,168,367.40 = 9,977,385.72/x
  3. Step 3: Cross multiply
    18,237,515.05x = 25,168,367.40 × 9,977,385.72
  4. Step 4: Simplify right side
    18,237,515.05x = 251,114,509,492,473.53
  5. Step 5: Solve for x
    x = 251,114,509,492,473.53/18,237,515.05
  6. Step 6: Final answer
    x = 13,769,118.70

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.