Home / 152,990,445.47-211,120,654.64-83,374,331.67

Finding the Fourth Proportional to 152,990,445.47, 211,120,654.64 and 83,374,331.67

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Solution

The fourth proportional to 152,990,445.47, 211,120,654.64 and 83,374,331.67 is: 115,053,220.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,990,445.47 : 211,120,654.64 = 83,374,331.67 : x
  2. Step 2: Convert to fraction form
    152,990,445.47/211,120,654.64 = 83,374,331.67/x
  3. Step 3: Cross multiply
    152,990,445.47x = 211,120,654.64 × 83,374,331.67
  4. Step 4: Simplify right side
    152,990,445.47x = 17,602,043,481,926,012
  5. Step 5: Solve for x
    x = 17,602,043,481,926,012/152,990,445.47
  6. Step 6: Final answer
    x = 115,053,220.67

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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.