Home / 28,238,959.80-42,358,439.70-19,629,615.60

Finding the Fourth Proportional to 28,238,959.80, 42,358,439.70 and 19,629,615.60

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Solution

The fourth proportional to 28,238,959.80, 42,358,439.70 and 19,629,615.60 is: 29,444,423.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,238,959.80 : 42,358,439.70 = 19,629,615.60 : x
  2. Step 2: Convert to fraction form
    28,238,959.80/42,358,439.70 = 19,629,615.60/x
  3. Step 3: Cross multiply
    28,238,959.80x = 42,358,439.70 × 19,629,615.60
  4. Step 4: Simplify right side
    28,238,959.80x = 831,479,888,726,779.50
  5. Step 5: Solve for x
    x = 831,479,888,726,779.50/28,238,959.80
  6. Step 6: Final answer
    x = 29,444,423.40

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1.5x scale

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.