Home / 1,020,201,303.44-1,408,312,212.16-685,867,727.12

Finding the Fourth Proportional to 1,020,201,303.44, 1,408,312,212.16 and 685,867,727.12

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Solution

The fourth proportional to 1,020,201,303.44, 1,408,312,212.16 and 685,867,727.12 is: 946,789,513.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,201,303.44 : 1,408,312,212.16 = 685,867,727.12 : x
  2. Step 2: Convert to fraction form
    1,020,201,303.44/1,408,312,212.16 = 685,867,727.12/x
  3. Step 3: Cross multiply
    1,020,201,303.44x = 1,408,312,212.16 × 685,867,727.12
  4. Step 4: Simplify right side
    1,020,201,303.44x = 965,915,896,031,324,416
  5. Step 5: Solve for x
    x = 965,915,896,031,324,416/1,020,201,303.44
  6. Step 6: Final answer
    x = 946,789,513.77

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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.