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Finding the Fourth Proportional to 15,978,875.60, 23,968,313.40 and 5,341,307.60

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Solution

The fourth proportional to 15,978,875.60, 23,968,313.40 and 5,341,307.60 is: 8,011,961.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,978,875.60 : 23,968,313.40 = 5,341,307.60 : x
  2. Step 2: Convert to fraction form
    15,978,875.60/23,968,313.40 = 5,341,307.60/x
  3. Step 3: Cross multiply
    15,978,875.60x = 23,968,313.40 × 5,341,307.60
  4. Step 4: Simplify right side
    15,978,875.60x = 128,022,134,522,601.83
  5. Step 5: Solve for x
    x = 128,022,134,522,601.83/15,978,875.60
  6. Step 6: Final answer
    x = 8,011,961.40

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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.