Home / 20,152,001.80-30,228,002.70-19,312,193.80

Finding the Fourth Proportional to 20,152,001.80, 30,228,002.70 and 19,312,193.80

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Solution

The fourth proportional to 20,152,001.80, 30,228,002.70 and 19,312,193.80 is: 28,968,290.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,152,001.80 : 30,228,002.70 = 19,312,193.80 : x
  2. Step 2: Convert to fraction form
    20,152,001.80/30,228,002.70 = 19,312,193.80/x
  3. Step 3: Cross multiply
    20,152,001.80x = 30,228,002.70 × 19,312,193.80
  4. Step 4: Simplify right side
    20,152,001.80x = 583,769,046,329,323.25
  5. Step 5: Solve for x
    x = 583,769,046,329,323.25/20,152,001.80
  6. Step 6: Final answer
    x = 28,968,290.70

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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.