Home / 30,186,529,017.40-45,279,793,526.10-19,193,778,220.60

Finding the Fourth Proportional to 30,186,529,017.40, 45,279,793,526.10 and 19,193,778,220.60

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Solution

The fourth proportional to 30,186,529,017.40, 45,279,793,526.10 and 19,193,778,220.60 is: 28,790,667,330.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,186,529,017.40 : 45,279,793,526.10 = 19,193,778,220.60 : x
  2. Step 2: Convert to fraction form
    30,186,529,017.40/45,279,793,526.10 = 19,193,778,220.60/x
  3. Step 3: Cross multiply
    30,186,529,017.40x = 45,279,793,526.10 × 19,193,778,220.60
  4. Step 4: Simplify right side
    30,186,529,017.40x = 869,090,314,814,522,916,864
  5. Step 5: Solve for x
    x = 869,090,314,814,522,916,864/30,186,529,017.40
  6. Step 6: Final answer
    x = 28,790,667,330.90

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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.