Home / 20,220,345.80-30,330,518.70-19,181,083.40

Finding the Fourth Proportional to 20,220,345.80, 30,330,518.70 and 19,181,083.40

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Solution

The fourth proportional to 20,220,345.80, 30,330,518.70 and 19,181,083.40 is: 28,771,625.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,220,345.80 : 30,330,518.70 = 19,181,083.40 : x
  2. Step 2: Convert to fraction form
    20,220,345.80/30,330,518.70 = 19,181,083.40/x
  3. Step 3: Cross multiply
    20,220,345.80x = 30,330,518.70 × 19,181,083.40
  4. Step 4: Simplify right side
    20,220,345.80x = 581,772,208,749,959.50
  5. Step 5: Solve for x
    x = 581,772,208,749,959.50/20,220,345.80
  6. Step 6: Final answer
    x = 28,771,625.10

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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.