Home / 30,279,778,858.20-45,419,668,287.30-19,831,223,645.40

Finding the Fourth Proportional to 30,279,778,858.20, 45,419,668,287.30 and 19,831,223,645.40

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Solution

The fourth proportional to 30,279,778,858.20, 45,419,668,287.30 and 19,831,223,645.40 is: 29,746,835,468.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,279,778,858.20 : 45,419,668,287.30 = 19,831,223,645.40 : x
  2. Step 2: Convert to fraction form
    30,279,778,858.20/45,419,668,287.30 = 19,831,223,645.40/x
  3. Step 3: Cross multiply
    30,279,778,858.20x = 45,419,668,287.30 × 19,831,223,645.40
  4. Step 4: Simplify right side
    30,279,778,858.20x = 900,727,599,705,328,451,584
  5. Step 5: Solve for x
    x = 900,727,599,705,328,451,584/30,279,778,858.20
  6. Step 6: Final answer
    x = 29,746,835,468.10

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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.