Home / 13,119,379,938.85-18,117,248,217.07-12,404,644,486.49

Finding the Fourth Proportional to 13,119,379,938.85, 18,117,248,217.07 and 12,404,644,486.49

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Solution

The fourth proportional to 13,119,379,938.85, 18,117,248,217.07 and 12,404,644,486.49 is: 17,130,232,088.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,119,379,938.85 : 18,117,248,217.07 = 12,404,644,486.49 : x
  2. Step 2: Convert to fraction form
    13,119,379,938.85/18,117,248,217.07 = 12,404,644,486.49/x
  3. Step 3: Cross multiply
    13,119,379,938.85x = 18,117,248,217.07 × 12,404,644,486.49
  4. Step 4: Simplify right side
    13,119,379,938.85x = 224,738,023,206,314,901,504
  5. Step 5: Solve for x
    x = 224,738,023,206,314,901,504/13,119,379,938.85
  6. Step 6: Final answer
    x = 17,130,232,088.25

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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.