Home / 13,419,063,348.81-18,518,363,550.20-7,397,436,577.31

Finding the Fourth Proportional to 13,419,063,348.81, 18,518,363,550.20 and 7,397,436,577.31

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Solution

The fourth proportional to 13,419,063,348.81, 18,518,363,550.20 and 7,397,436,577.31 is: 10,208,493,418.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,419,063,348.81 : 18,518,363,550.20 = 7,397,436,577.31 : x
  2. Step 2: Convert to fraction form
    13,419,063,348.81/18,518,363,550.20 = 7,397,436,577.31/x
  3. Step 3: Cross multiply
    13,419,063,348.81x = 18,518,363,550.20 × 7,397,436,577.31
  4. Step 4: Simplify right side
    13,419,063,348.81x = 136,988,419,878,073,778,176
  5. Step 5: Solve for x
    x = 136,988,419,878,073,778,176/13,419,063,348.81
  6. Step 6: Final answer
    x = 10,208,493,418.45

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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.