Home / 13,507,565,587.38-18,640,442,279.43-7,486,459,719.03

Finding the Fourth Proportional to 13,507,565,587.38, 18,640,442,279.43 and 7,486,459,719.03

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Solution

The fourth proportional to 13,507,565,587.38, 18,640,442,279.43 and 7,486,459,719.03 is: 10,331,315,392.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,507,565,587.38 : 18,640,442,279.43 = 7,486,459,719.03 : x
  2. Step 2: Convert to fraction form
    13,507,565,587.38/18,640,442,279.43 = 7,486,459,719.03/x
  3. Step 3: Cross multiply
    13,507,565,587.38x = 18,640,442,279.43 × 7,486,459,719.03
  4. Step 4: Simplify right side
    13,507,565,587.38x = 139,550,920,269,856,440,320
  5. Step 5: Solve for x
    x = 139,550,920,269,856,440,320/13,507,565,587.38
  6. Step 6: Final answer
    x = 10,331,315,392.63

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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.