Home / 1,121,521,367.70-1,682,282,051.55-540,390,634.20

Finding the Fourth Proportional to 1,121,521,367.70, 1,682,282,051.55 and 540,390,634.20

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Solution

The fourth proportional to 1,121,521,367.70, 1,682,282,051.55 and 540,390,634.20 is: 810,585,951.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,521,367.70 : 1,682,282,051.55 = 540,390,634.20 : x
  2. Step 2: Convert to fraction form
    1,121,521,367.70/1,682,282,051.55 = 540,390,634.20/x
  3. Step 3: Cross multiply
    1,121,521,367.70x = 1,682,282,051.55 × 540,390,634.20
  4. Step 4: Simplify right side
    1,121,521,367.70x = 909,089,464,740,381,696
  5. Step 5: Solve for x
    x = 909,089,464,740,381,696/1,121,521,367.70
  6. Step 6: Final answer
    x = 810,585,951.30

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Double scale
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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.