Home / 42,749,704.10-64,166,546.55-21,208,628.90

Finding the Fourth Proportional to 42,749,704.10, 64,166,546.55 and 21,208,628.90

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Solution

The fourth proportional to 42,749,704.10, 64,166,546.55 and 21,208,628.90 is: 31,833,775.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,749,704.10 : 64,166,546.55 = 21,208,628.90 : x
  2. Step 2: Convert to fraction form
    42,749,704.10/64,166,546.55 = 21,208,628.90/x
  3. Step 3: Cross multiply
    42,749,704.10x = 64,166,546.55 × 21,208,628.90
  4. Step 4: Simplify right side
    42,749,704.10x = 1,360,884,473,573,525.25
  5. Step 5: Solve for x
    x = 1,360,884,473,573,525.25/42,749,704.10
  6. Step 6: Final answer
    x = 31,833,775.28

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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.