Home / 30,610,722.59-42,242,797.95-16,859,686.72

Finding the Fourth Proportional to 30,610,722.59, 42,242,797.95 and 16,859,686.72

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Solution

The fourth proportional to 30,610,722.59, 42,242,797.95 and 16,859,686.72 is: 23,266,368.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,610,722.59 : 42,242,797.95 = 16,859,686.72 : x
  2. Step 2: Convert to fraction form
    30,610,722.59/42,242,797.95 = 16,859,686.72/x
  3. Step 3: Cross multiply
    30,610,722.59x = 42,242,797.95 × 16,859,686.72
  4. Step 4: Simplify right side
    30,610,722.59x = 712,200,339,317,745.75
  5. Step 5: Solve for x
    x = 712,200,339,317,745.75/30,610,722.59
  6. Step 6: Final answer
    x = 23,266,368.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.