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Finding the Fourth Proportional to 36,700,485.20, 55,048,978.20 and 12,437,032.40

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Solution

The fourth proportional to 36,700,485.20, 55,048,978.20 and 12,437,032.40 is: 18,654,955.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,700,485.20 : 55,048,978.20 = 12,437,032.40 : x
  2. Step 2: Convert to fraction form
    36,700,485.20/55,048,978.20 = 12,437,032.40/x
  3. Step 3: Cross multiply
    36,700,485.20x = 55,048,978.20 × 12,437,032.40
  4. Step 4: Simplify right side
    36,700,485.20x = 684,645,925,460,293.75
  5. Step 5: Solve for x
    x = 684,645,925,460,293.75/36,700,485.20
  6. Step 6: Final answer
    x = 18,654,955.70

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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.