Home / 12,734,420.80-19,101,631.20-8,908,045.60

Finding the Fourth Proportional to 12,734,420.80, 19,101,631.20 and 8,908,045.60

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Solution

The fourth proportional to 12,734,420.80, 19,101,631.20 and 8,908,045.60 is: 13,362,068.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,734,420.80 : 19,101,631.20 = 8,908,045.60 : x
  2. Step 2: Convert to fraction form
    12,734,420.80/19,101,631.20 = 8,908,045.60/x
  3. Step 3: Cross multiply
    12,734,420.80x = 19,101,631.20 × 8,908,045.60
  4. Step 4: Simplify right side
    12,734,420.80x = 170,158,201,763,982.72
  5. Step 5: Solve for x
    x = 170,158,201,763,982.72/12,734,420.80
  6. Step 6: Final answer
    x = 13,362,068.40

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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.