Home / 1,129,169,886.34-1,693,097,171.22-438,270,014.32

Finding the Fourth Proportional to 1,129,169,886.34, 1,693,097,171.22 and 438,270,014.32

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Solution

The fourth proportional to 1,129,169,886.34, 1,693,097,171.22 and 438,270,014.32 is: 657,149,761.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,169,886.34 : 1,693,097,171.22 = 438,270,014.32 : x
  2. Step 2: Convert to fraction form
    1,129,169,886.34/1,693,097,171.22 = 438,270,014.32/x
  3. Step 3: Cross multiply
    1,129,169,886.34x = 1,693,097,171.22 × 438,270,014.32
  4. Step 4: Simplify right side
    1,129,169,886.34x = 742,033,721,475,740,928
  5. Step 5: Solve for x
    x = 742,033,721,475,740,928/1,129,169,886.34
  6. Step 6: Final answer
    x = 657,149,761.48

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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.