Home / 82,028,666.80-123,090,239.40-30,947,345.20

Finding the Fourth Proportional to 82,028,666.80, 123,090,239.40 and 30,947,345.20

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Solution

The fourth proportional to 82,028,666.80, 123,090,239.40 and 30,947,345.20 is: 46,438,839.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,028,666.80 : 123,090,239.40 = 30,947,345.20 : x
  2. Step 2: Convert to fraction form
    82,028,666.80/123,090,239.40 = 30,947,345.20/x
  3. Step 3: Cross multiply
    82,028,666.80x = 123,090,239.40 × 30,947,345.20
  4. Step 4: Simplify right side
    82,028,666.80x = 3,809,316,129,462,441
  5. Step 5: Solve for x
    x = 3,809,316,129,462,441/82,028,666.80
  6. Step 6: Final answer
    x = 46,438,839.96

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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.