Home / 152,868,799,390.96-210,959,922,425.16-85,207,679,884.72

Finding the Fourth Proportional to 152,868,799,390.96, 210,959,922,425.16 and 85,207,679,884.72

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Solution

The fourth proportional to 152,868,799,390.96, 210,959,922,425.16 and 85,207,679,884.72 is: 117,587,144,074.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,868,799,390.96 : 210,959,922,425.16 = 85,207,679,884.72 : x
  2. Step 2: Convert to fraction form
    152,868,799,390.96/210,959,922,425.16 = 85,207,679,884.72/x
  3. Step 3: Cross multiply
    152,868,799,390.96x = 210,959,922,425.16 × 85,207,679,884.72
  4. Step 4: Simplify right side
    152,868,799,390.96x = 17,975,405,538,508,397,346,816
  5. Step 5: Solve for x
    x = 17,975,405,538,508,397,346,816/152,868,799,390.96
  6. Step 6: Final answer
    x = 117,587,144,074.68

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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.