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Finding the Fourth Proportional to 145,378,978.60, 218,068,467.90 and 104,564,309.80

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Solution

The fourth proportional to 145,378,978.60, 218,068,467.90 and 104,564,309.80 is: 156,846,464.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,378,978.60 : 218,068,467.90 = 104,564,309.80 : x
  2. Step 2: Convert to fraction form
    145,378,978.60/218,068,467.90 = 104,564,309.80/x
  3. Step 3: Cross multiply
    145,378,978.60x = 218,068,467.90 × 104,564,309.80
  4. Step 4: Simplify right side
    145,378,978.60x = 22,802,178,835,106,956
  5. Step 5: Solve for x
    x = 22,802,178,835,106,956/145,378,978.60
  6. Step 6: Final answer
    x = 156,846,464.70

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.