Home / 7,143,486,293.51-9,858,563,278.81-4,285,736,053.45

Finding the Fourth Proportional to 7,143,486,293.51, 9,858,563,278.81 and 4,285,736,053.45

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Solution

The fourth proportional to 7,143,486,293.51, 9,858,563,278.81 and 4,285,736,053.45 is: 5,914,647,042.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,143,486,293.51 : 9,858,563,278.81 = 4,285,736,053.45 : x
  2. Step 2: Convert to fraction form
    7,143,486,293.51/9,858,563,278.81 = 4,285,736,053.45/x
  3. Step 3: Cross multiply
    7,143,486,293.51x = 9,858,563,278.81 × 4,285,736,053.45
  4. Step 4: Simplify right side
    7,143,486,293.51x = 42,251,200,079,202,050,048
  5. Step 5: Solve for x
    x = 42,251,200,079,202,050,048/7,143,486,293.51
  6. Step 6: Final answer
    x = 5,914,647,042.52

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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.