Home / 28,877,881.20-43,328,485.80-12,706,911.60

Finding the Fourth Proportional to 28,877,881.20, 43,328,485.80 and 12,706,911.60

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Solution

The fourth proportional to 28,877,881.20, 43,328,485.80 and 12,706,911.60 is: 19,065,499.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,877,881.20 : 43,328,485.80 = 12,706,911.60 : x
  2. Step 2: Convert to fraction form
    28,877,881.20/43,328,485.80 = 12,706,911.60/x
  3. Step 3: Cross multiply
    28,877,881.20x = 43,328,485.80 × 12,706,911.60
  4. Step 4: Simplify right side
    28,877,881.20x = 550,571,238,822,455.25
  5. Step 5: Solve for x
    x = 550,571,238,822,455.25/28,877,881.20
  6. Step 6: Final answer
    x = 19,065,499.82

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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.