Home / 78,889,605.60-118,253,926.80-53,333,198.40

Finding the Fourth Proportional to 78,889,605.60, 118,253,926.80 and 53,333,198.40

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Solution

The fourth proportional to 78,889,605.60, 118,253,926.80 and 53,333,198.40 is: 79,945,388.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,889,605.60 : 118,253,926.80 = 53,333,198.40 : x
  2. Step 2: Convert to fraction form
    78,889,605.60/118,253,926.80 = 53,333,198.40/x
  3. Step 3: Cross multiply
    78,889,605.60x = 118,253,926.80 × 53,333,198.40
  4. Step 4: Simplify right side
    78,889,605.60x = 6,306,860,139,603,477
  5. Step 5: Solve for x
    x = 6,306,860,139,603,477/78,889,605.60
  6. Step 6: Final answer
    x = 79,945,388.14

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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.