Home / 282,147,739.17-389,368,693.75-154,993,779.20

Finding the Fourth Proportional to 282,147,739.17, 389,368,693.75 and 154,993,779.20

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Solution

The fourth proportional to 282,147,739.17, 389,368,693.75 and 154,993,779.20 is: 213,894,059.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,147,739.17 : 389,368,693.75 = 154,993,779.20 : x
  2. Step 2: Convert to fraction form
    282,147,739.17/389,368,693.75 = 154,993,779.20/x
  3. Step 3: Cross multiply
    282,147,739.17x = 389,368,693.75 × 154,993,779.20
  4. Step 4: Simplify right side
    282,147,739.17x = 60,349,725,344,533,072
  5. Step 5: Solve for x
    x = 60,349,725,344,533,072/282,147,739.17
  6. Step 6: Final answer
    x = 213,894,059.62

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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.