Home / 21,368,000.80-31,968,020.40-19,352,461.60

Finding the Fourth Proportional to 21,368,000.80, 31,968,020.40 and 19,352,461.60

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Solution

The fourth proportional to 21,368,000.80, 31,968,020.40 and 19,352,461.60 is: 28,952,633.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,368,000.80 : 31,968,020.40 = 19,352,461.60 : x
  2. Step 2: Convert to fraction form
    21,368,000.80/31,968,020.40 = 19,352,461.60/x
  3. Step 3: Cross multiply
    21,368,000.80x = 31,968,020.40 × 19,352,461.60
  4. Step 4: Simplify right side
    21,368,000.80x = 618,659,887,219,016.62
  5. Step 5: Solve for x
    x = 618,659,887,219,016.62/21,368,000.80
  6. Step 6: Final answer
    x = 28,952,633.10

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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.