Home / 216,438,580.40-298,677,239.06-117,317,199.63

Finding the Fourth Proportional to 216,438,580.40, 298,677,239.06 and 117,317,199.63

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Solution

The fourth proportional to 216,438,580.40, 298,677,239.06 and 117,317,199.63 is: 161,893,398.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,438,580.40 : 298,677,239.06 = 117,317,199.63 : x
  2. Step 2: Convert to fraction form
    216,438,580.40/298,677,239.06 = 117,317,199.63/x
  3. Step 3: Cross multiply
    216,438,580.40x = 298,677,239.06 × 117,317,199.63
  4. Step 4: Simplify right side
    216,438,580.40x = 35,039,977,279,152,668
  5. Step 5: Solve for x
    x = 35,039,977,279,152,668/216,438,580.40
  6. Step 6: Final answer
    x = 161,893,398.18

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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.