Home / 10,505,541.60-15,758,312.40-8,379,777.60

Finding the Fourth Proportional to 10,505,541.60, 15,758,312.40 and 8,379,777.60

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Solution

The fourth proportional to 10,505,541.60, 15,758,312.40 and 8,379,777.60 is: 12,569,666.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,505,541.60 : 15,758,312.40 = 8,379,777.60 : x
  2. Step 2: Convert to fraction form
    10,505,541.60/15,758,312.40 = 8,379,777.60/x
  3. Step 3: Cross multiply
    10,505,541.60x = 15,758,312.40 × 8,379,777.60
  4. Step 4: Simplify right side
    10,505,541.60x = 132,051,153,263,322.23
  5. Step 5: Solve for x
    x = 132,051,153,263,322.23/10,505,541.60
  6. Step 6: Final answer
    x = 12,569,666.40

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Similar ratio
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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.