Home / 1,438,487,480.56-1,984,626,779.16-936,467,676.40

Finding the Fourth Proportional to 1,438,487,480.56, 1,984,626,779.16 and 936,467,676.40

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Solution

The fourth proportional to 1,438,487,480.56, 1,984,626,779.16 and 936,467,676.40 is: 1,292,009,039.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,487,480.56 : 1,984,626,779.16 = 936,467,676.40 : x
  2. Step 2: Convert to fraction form
    1,438,487,480.56/1,984,626,779.16 = 936,467,676.40/x
  3. Step 3: Cross multiply
    1,438,487,480.56x = 1,984,626,779.16 × 936,467,676.40
  4. Step 4: Simplify right side
    1,438,487,480.56x = 1,858,538,828,401,181,184
  5. Step 5: Solve for x
    x = 1,858,538,828,401,181,184/1,438,487,480.56
  6. Step 6: Final answer
    x = 1,292,009,039.72

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.