Home / 20,152,000.80-30,228,001.20-19,312,192.80

Finding the Fourth Proportional to 20,152,000.80, 30,228,001.20 and 19,312,192.80

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Solution

The fourth proportional to 20,152,000.80, 30,228,001.20 and 19,312,192.80 is: 28,968,289.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,152,000.80 : 30,228,001.20 = 19,312,192.80 : x
  2. Step 2: Convert to fraction form
    20,152,000.80/30,228,001.20 = 19,312,192.80/x
  3. Step 3: Cross multiply
    20,152,000.80x = 30,228,001.20 × 19,312,192.80
  4. Step 4: Simplify right side
    20,152,000.80x = 583,768,987,133,031.38
  5. Step 5: Solve for x
    x = 583,768,987,133,031.38/20,152,000.80
  6. Step 6: Final answer
    x = 28,968,289.20

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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.