Home / 648,834,431.60-973,346,125.80-212,029,295.60

Finding the Fourth Proportional to 648,834,431.60, 973,346,125.80 and 212,029,295.60

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Solution

The fourth proportional to 648,834,431.60, 973,346,125.80 and 212,029,295.60 is: 318,074,817.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,834,431.60 : 973,346,125.80 = 212,029,295.60 : x
  2. Step 2: Convert to fraction form
    648,834,431.60/973,346,125.80 = 212,029,295.60/x
  3. Step 3: Cross multiply
    648,834,431.60x = 973,346,125.80 × 212,029,295.60
  4. Step 4: Simplify right side
    648,834,431.60x = 206,377,893,428,362,976
  5. Step 5: Solve for x
    x = 206,377,893,428,362,976/648,834,431.60
  6. Step 6: Final answer
    x = 318,074,817.51

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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.