Home / 12,467,549,256.61-18,731,158,546.63-7,994,407,785.78

Finding the Fourth Proportional to 12,467,549,256.61, 18,731,158,546.63 and 7,994,407,785.78

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Solution

The fourth proportional to 12,467,549,256.61, 18,731,158,546.63 and 7,994,407,785.78 is: 12,010,742,178.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,467,549,256.61 : 18,731,158,546.63 = 7,994,407,785.78 : x
  2. Step 2: Convert to fraction form
    12,467,549,256.61/18,731,158,546.63 = 7,994,407,785.78/x
  3. Step 3: Cross multiply
    12,467,549,256.61x = 18,731,158,546.63 × 7,994,407,785.78
  4. Step 4: Simplify right side
    12,467,549,256.61x = 149,744,519,721,865,084,928
  5. Step 5: Solve for x
    x = 149,744,519,721,865,084,928/12,467,549,256.61
  6. Step 6: Final answer
    x = 12,010,742,178.74

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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.