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Finding the Fourth Proportional to 403,103,999.60, 604,655,999.40 and 130,670,284.40

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Solution

The fourth proportional to 403,103,999.60, 604,655,999.40 and 130,670,284.40 is: 196,005,426.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,103,999.60 : 604,655,999.40 = 130,670,284.40 : x
  2. Step 2: Convert to fraction form
    403,103,999.60/604,655,999.40 = 130,670,284.40/x
  3. Step 3: Cross multiply
    403,103,999.60x = 604,655,999.40 × 130,670,284.40
  4. Step 4: Simplify right side
    403,103,999.60x = 79,010,571,405,764,224
  5. Step 5: Solve for x
    x = 79,010,571,405,764,224/403,103,999.60
  6. Step 6: Final answer
    x = 196,005,426.60

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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.