Home / 1,020,226,504.40-1,530,339,756.60-406,905,390.80

Finding the Fourth Proportional to 1,020,226,504.40, 1,530,339,756.60 and 406,905,390.80

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Solution

The fourth proportional to 1,020,226,504.40, 1,530,339,756.60 and 406,905,390.80 is: 610,358,086.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,226,504.40 : 1,530,339,756.60 = 406,905,390.80 : x
  2. Step 2: Convert to fraction form
    1,020,226,504.40/1,530,339,756.60 = 406,905,390.80/x
  3. Step 3: Cross multiply
    1,020,226,504.40x = 1,530,339,756.60 × 406,905,390.80
  4. Step 4: Simplify right side
    1,020,226,504.40x = 622,703,496,716,099,840
  5. Step 5: Solve for x
    x = 622,703,496,716,099,840/1,020,226,504.40
  6. Step 6: Final answer
    x = 610,358,086.20

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Double scale
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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.