Home / 30,142,810.40-45,172,327.71-15,737,142.54

Finding the Fourth Proportional to 30,142,810.40, 45,172,327.71 and 15,737,142.54

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Solution

The fourth proportional to 30,142,810.40, 45,172,327.71 and 15,737,142.54 is: 23,583,844.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,142,810.40 : 45,172,327.71 = 15,737,142.54 : x
  2. Step 2: Convert to fraction form
    30,142,810.40/45,172,327.71 = 15,737,142.54/x
  3. Step 3: Cross multiply
    30,142,810.40x = 45,172,327.71 × 15,737,142.54
  4. Step 4: Simplify right side
    30,142,810.40x = 710,883,360,175,750.88
  5. Step 5: Solve for x
    x = 710,883,360,175,750.88/30,142,810.40
  6. Step 6: Final answer
    x = 23,583,844.73

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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.