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Finding the Fourth Proportional to 285,455,374.41, 428,183,428.41 and 78,195,607.98

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Solution

The fourth proportional to 285,455,374.41, 428,183,428.41 and 78,195,607.98 is: 117,293,512.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,455,374.41 : 428,183,428.41 = 78,195,607.98 : x
  2. Step 2: Convert to fraction form
    285,455,374.41/428,183,428.41 = 78,195,607.98/x
  3. Step 3: Cross multiply
    285,455,374.41x = 428,183,428.41 × 78,195,607.98
  4. Step 4: Simplify right side
    285,455,374.41x = 33,482,063,509,656,116
  5. Step 5: Solve for x
    x = 33,482,063,509,656,116/285,455,374.41
  6. Step 6: Final answer
    x = 117,293,512.44

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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.