Home / 28,186,133.60-42,279,200.40-19,683,077.60

Finding the Fourth Proportional to 28,186,133.60, 42,279,200.40 and 19,683,077.60

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Solution

The fourth proportional to 28,186,133.60, 42,279,200.40 and 19,683,077.60 is: 29,524,616.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,186,133.60 : 42,279,200.40 = 19,683,077.60 : x
  2. Step 2: Convert to fraction form
    28,186,133.60/42,279,200.40 = 19,683,077.60/x
  3. Step 3: Cross multiply
    28,186,133.60x = 42,279,200.40 × 19,683,077.60
  4. Step 4: Simplify right side
    28,186,133.60x = 832,184,782,339,151.12
  5. Step 5: Solve for x
    x = 832,184,782,339,151.12/28,186,133.60
  6. Step 6: Final answer
    x = 29,524,616.40

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Similar ratio
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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.