Home / 151,781,090.74-209,457,861.06-82,166,419.96

Finding the Fourth Proportional to 151,781,090.74, 209,457,861.06 and 82,166,419.96

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Solution

The fourth proportional to 151,781,090.74, 209,457,861.06 and 82,166,419.96 is: 113,389,635.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,781,090.74 : 209,457,861.06 = 82,166,419.96 : x
  2. Step 2: Convert to fraction form
    151,781,090.74/209,457,861.06 = 82,166,419.96/x
  3. Step 3: Cross multiply
    151,781,090.74x = 209,457,861.06 × 82,166,419.96
  4. Step 4: Simplify right side
    151,781,090.74x = 17,210,402,575,779,290
  5. Step 5: Solve for x
    x = 17,210,402,575,779,290/151,781,090.74
  6. Step 6: Final answer
    x = 113,389,635.64

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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.