Home / 12,912,149.60-19,368,224.40-4,402,095.20

Finding the Fourth Proportional to 12,912,149.60, 19,368,224.40 and 4,402,095.20

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Solution

The fourth proportional to 12,912,149.60, 19,368,224.40 and 4,402,095.20 is: 6,603,142.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,912,149.60 : 19,368,224.40 = 4,402,095.20 : x
  2. Step 2: Convert to fraction form
    12,912,149.60/19,368,224.40 = 4,402,095.20/x
  3. Step 3: Cross multiply
    12,912,149.60x = 19,368,224.40 × 4,402,095.20
  4. Step 4: Simplify right side
    12,912,149.60x = 85,260,767,663,762.88
  5. Step 5: Solve for x
    x = 85,260,767,663,762.88/12,912,149.60
  6. Step 6: Final answer
    x = 6,603,142.80

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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.