Home / 442,829,016.06-663,986,540.30-209,657,770.58

Finding the Fourth Proportional to 442,829,016.06, 663,986,540.30 and 209,657,770.58

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Solution

The fourth proportional to 442,829,016.06, 663,986,540.30 and 209,657,770.58 is: 314,364,986.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,829,016.06 : 663,986,540.30 = 209,657,770.58 : x
  2. Step 2: Convert to fraction form
    442,829,016.06/663,986,540.30 = 209,657,770.58/x
  3. Step 3: Cross multiply
    442,829,016.06x = 663,986,540.30 × 209,657,770.58
  4. Step 4: Simplify right side
    442,829,016.06x = 139,209,937,730,057,088
  5. Step 5: Solve for x
    x = 139,209,937,730,057,088/442,829,016.06
  6. Step 6: Final answer
    x = 314,364,986.67

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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.