Home / 290,412,000.80-435,618,001.20-187,619,501.60

Finding the Fourth Proportional to 290,412,000.80, 435,618,001.20 and 187,619,501.60

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Solution

The fourth proportional to 290,412,000.80, 435,618,001.20 and 187,619,501.60 is: 281,429,252.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,412,000.80 : 435,618,001.20 = 187,619,501.60 : x
  2. Step 2: Convert to fraction form
    290,412,000.80/435,618,001.20 = 187,619,501.60/x
  3. Step 3: Cross multiply
    290,412,000.80x = 435,618,001.20 × 187,619,501.60
  4. Step 4: Simplify right side
    290,412,000.80x = 81,730,432,273,132,192
  5. Step 5: Solve for x
    x = 81,730,432,273,132,192/290,412,000.80
  6. Step 6: Final answer
    x = 281,429,252.40

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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.