Home / 55,330,003.80-83,009,520.90-21,252,461.40

Finding the Fourth Proportional to 55,330,003.80, 83,009,520.90 and 21,252,461.40

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Solution

The fourth proportional to 55,330,003.80, 83,009,520.90 and 21,252,461.40 is: 31,884,267.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,330,003.80 : 83,009,520.90 = 21,252,461.40 : x
  2. Step 2: Convert to fraction form
    55,330,003.80/83,009,520.90 = 21,252,461.40/x
  3. Step 3: Cross multiply
    55,330,003.80x = 83,009,520.90 × 21,252,461.40
  4. Step 4: Simplify right side
    55,330,003.80x = 1,764,156,638,759,743.25
  5. Step 5: Solve for x
    x = 1,764,156,638,759,743.25/55,330,003.80
  6. Step 6: Final answer
    x = 31,884,267.44

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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.