Home / 13,646,385.20-20,413,590.60-12,302,692.40

Finding the Fourth Proportional to 13,646,385.20, 20,413,590.60 and 12,302,692.40

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Solution

The fourth proportional to 13,646,385.20, 20,413,590.60 and 12,302,692.40 is: 18,403,564.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,646,385.20 : 20,413,590.60 = 12,302,692.40 : x
  2. Step 2: Convert to fraction form
    13,646,385.20/20,413,590.60 = 12,302,692.40/x
  3. Step 3: Cross multiply
    13,646,385.20x = 20,413,590.60 × 12,302,692.40
  4. Step 4: Simplify right side
    13,646,385.20x = 251,142,125,931,331.47
  5. Step 5: Solve for x
    x = 251,142,125,931,331.47/13,646,385.20
  6. Step 6: Final answer
    x = 18,403,564.19

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1.5x scale

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.