Home / 18,789,931.75-28,184,897.64-4,606,507.75

Finding the Fourth Proportional to 18,789,931.75, 28,184,897.64 and 4,606,507.75

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Solution

The fourth proportional to 18,789,931.75, 28,184,897.64 and 4,606,507.75 is: 6,909,761.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,789,931.75 : 28,184,897.64 = 4,606,507.75 : x
  2. Step 2: Convert to fraction form
    18,789,931.75/28,184,897.64 = 4,606,507.75/x
  3. Step 3: Cross multiply
    18,789,931.75x = 28,184,897.64 × 4,606,507.75
  4. Step 4: Simplify right side
    18,789,931.75x = 129,833,949,411,616.72
  5. Step 5: Solve for x
    x = 129,833,949,411,616.72/18,789,931.75
  6. Step 6: Final answer
    x = 6,909,761.63

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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.