Home / 12,938,259,107.10-19,407,388,660.65-12,430,343,228.70

Finding the Fourth Proportional to 12,938,259,107.10, 19,407,388,660.65 and 12,430,343,228.70

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Solution

The fourth proportional to 12,938,259,107.10, 19,407,388,660.65 and 12,430,343,228.70 is: 18,645,514,843.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,938,259,107.10 : 19,407,388,660.65 = 12,430,343,228.70 : x
  2. Step 2: Convert to fraction form
    12,938,259,107.10/19,407,388,660.65 = 12,430,343,228.70/x
  3. Step 3: Cross multiply
    12,938,259,107.10x = 19,407,388,660.65 × 12,430,343,228.70
  4. Step 4: Simplify right side
    12,938,259,107.10x = 241,240,502,224,659,939,328
  5. Step 5: Solve for x
    x = 241,240,502,224,659,939,328/12,938,259,107.10
  6. Step 6: Final answer
    x = 18,645,514,843.05

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.