Home / 19,422,030.80-29,166,223.80-12,720,155.60

Finding the Fourth Proportional to 19,422,030.80, 29,166,223.80 and 12,720,155.60

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Solution

The fourth proportional to 19,422,030.80, 29,166,223.80 and 12,720,155.60 is: 19,101,962.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,422,030.80 : 29,166,223.80 = 12,720,155.60 : x
  2. Step 2: Convert to fraction form
    19,422,030.80/29,166,223.80 = 12,720,155.60/x
  3. Step 3: Cross multiply
    19,422,030.80x = 29,166,223.80 × 12,720,155.60
  4. Step 4: Simplify right side
    19,422,030.80x = 370,998,905,000,423.25
  5. Step 5: Solve for x
    x = 370,998,905,000,423.25/19,422,030.80
  6. Step 6: Final answer
    x = 19,101,962.55

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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.