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Finding the Fourth Proportional to 199,486,980.30, 298,978,528.05 and 97,030,404.30

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Solution

The fourth proportional to 199,486,980.30, 298,978,528.05 and 97,030,404.30 is: 145,423,061.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,486,980.30 : 298,978,528.05 = 97,030,404.30 : x
  2. Step 2: Convert to fraction form
    199,486,980.30/298,978,528.05 = 97,030,404.30/x
  3. Step 3: Cross multiply
    199,486,980.30x = 298,978,528.05 × 97,030,404.30
  4. Step 4: Simplify right side
    199,486,980.30x = 29,010,007,453,710,392
  5. Step 5: Solve for x
    x = 29,010,007,453,710,392/199,486,980.30
  6. Step 6: Final answer
    x = 145,423,061.75

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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.