Home / 13,109,165,228.93-18,090,613,989.45-7,315,407,886.82

Finding the Fourth Proportional to 13,109,165,228.93, 18,090,613,989.45 and 7,315,407,886.82

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Solution

The fourth proportional to 13,109,165,228.93, 18,090,613,989.45 and 7,315,407,886.82 is: 10,095,243,895.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,109,165,228.93 : 18,090,613,989.45 = 7,315,407,886.82 : x
  2. Step 2: Convert to fraction form
    13,109,165,228.93/18,090,613,989.45 = 7,315,407,886.82/x
  3. Step 3: Cross multiply
    13,109,165,228.93x = 18,090,613,989.45 × 7,315,407,886.82
  4. Step 4: Simplify right side
    13,109,165,228.93x = 132,340,220,255,748,292,608
  5. Step 5: Solve for x
    x = 132,340,220,255,748,292,608/13,109,165,228.93
  6. Step 6: Final answer
    x = 10,095,243,895.76

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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.