Home / 141,765,787-195,635,627.76-79,041,139.84

Finding the Fourth Proportional to 141,765,787, 195,635,627.76 and 79,041,139.84

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Solution

The fourth proportional to 141,765,787, 195,635,627.76 and 79,041,139.84 is: 109,076,127.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,765,787 : 195,635,627.76 = 79,041,139.84 : x
  2. Step 2: Convert to fraction form
    141,765,787/195,635,627.76 = 79,041,139.84/x
  3. Step 3: Cross multiply
    141,765,787x = 195,635,627.76 × 79,041,139.84
  4. Step 4: Simplify right side
    141,765,787x = 15,463,263,011,464,346
  5. Step 5: Solve for x
    x = 15,463,263,011,464,346/141,765,787
  6. Step 6: Final answer
    x = 109,076,127.17

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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.