Home / 30,278,420.52-45,415,434.73-11,830,897.83

Finding the Fourth Proportional to 30,278,420.52, 45,415,434.73 and 11,830,897.83

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Solution

The fourth proportional to 30,278,420.52, 45,415,434.73 and 11,830,897.83 is: 17,745,488.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,278,420.52 : 45,415,434.73 = 11,830,897.83 : x
  2. Step 2: Convert to fraction form
    30,278,420.52/45,415,434.73 = 11,830,897.83/x
  3. Step 3: Cross multiply
    30,278,420.52x = 45,415,434.73 × 11,830,897.83
  4. Step 4: Simplify right side
    30,278,420.52x = 537,305,368,167,014.81
  5. Step 5: Solve for x
    x = 537,305,368,167,014.81/30,278,420.52
  6. Step 6: Final answer
    x = 17,745,488.66

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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.