Home / 1,438,487,478.56-1,984,626,776.40-936,467,674.40

Finding the Fourth Proportional to 1,438,487,478.56, 1,984,626,776.40 and 936,467,674.40

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Solution

The fourth proportional to 1,438,487,478.56, 1,984,626,776.40 and 936,467,674.40 is: 1,292,009,036.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,487,478.56 : 1,984,626,776.40 = 936,467,674.40 : x
  2. Step 2: Convert to fraction form
    1,438,487,478.56/1,984,626,776.40 = 936,467,674.40/x
  3. Step 3: Cross multiply
    1,438,487,478.56x = 1,984,626,776.40 × 936,467,674.40
  4. Step 4: Simplify right side
    1,438,487,478.56x = 1,858,538,821,847,276,800
  5. Step 5: Solve for x
    x = 1,858,538,821,847,276,800/1,438,487,478.56
  6. Step 6: Final answer
    x = 1,292,009,036.96

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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.