Home / 82,558,421.40-123,837,194.70-21,147,461.40

Finding the Fourth Proportional to 82,558,421.40, 123,837,194.70 and 21,147,461.40

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Solution

The fourth proportional to 82,558,421.40, 123,837,194.70 and 21,147,461.40 is: 31,721,080.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,558,421.40 : 123,837,194.70 = 21,147,461.40 : x
  2. Step 2: Convert to fraction form
    82,558,421.40/123,837,194.70 = 21,147,461.40/x
  3. Step 3: Cross multiply
    82,558,421.40x = 123,837,194.70 × 21,147,461.40
  4. Step 4: Simplify right side
    82,558,421.40x = 2,618,842,294,802,534.50
  5. Step 5: Solve for x
    x = 2,618,842,294,802,534.50/82,558,421.40
  6. Step 6: Final answer
    x = 31,721,080.06

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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.