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Finding the Fourth Proportional to 139,069,061.60, 208,603,592.40 and 101,320,325.60

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Solution

The fourth proportional to 139,069,061.60, 208,603,592.40 and 101,320,325.60 is: 151,980,488.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,069,061.60 : 208,603,592.40 = 101,320,325.60 : x
  2. Step 2: Convert to fraction form
    139,069,061.60/208,603,592.40 = 101,320,325.60/x
  3. Step 3: Cross multiply
    139,069,061.60x = 208,603,592.40 × 101,320,325.60
  4. Step 4: Simplify right side
    139,069,061.60x = 21,135,783,903,297,684
  5. Step 5: Solve for x
    x = 21,135,783,903,297,684/139,069,061.60
  6. Step 6: Final answer
    x = 151,980,488.40

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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.