Home / 153,557,591-211,910,885.60-87,477,109.90

Finding the Fourth Proportional to 153,557,591, 211,910,885.60 and 87,477,109.90

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Solution

The fourth proportional to 153,557,591, 211,910,885.60 and 87,477,109.90 is: 120,719,214.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,557,591 : 211,910,885.60 = 87,477,109.90 : x
  2. Step 2: Convert to fraction form
    153,557,591/211,910,885.60 = 87,477,109.90/x
  3. Step 3: Cross multiply
    153,557,591x = 211,910,885.60 × 87,477,109.90
  4. Step 4: Simplify right side
    153,557,591x = 18,537,351,827,140,588
  5. Step 5: Solve for x
    x = 18,537,351,827,140,588/153,557,591
  6. Step 6: Final answer
    x = 120,719,214.90

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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.