Home / 1,129,169,879.34-1,693,097,160.72-438,270,007.32

Finding the Fourth Proportional to 1,129,169,879.34, 1,693,097,160.72 and 438,270,007.32

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Solution

The fourth proportional to 1,129,169,879.34, 1,693,097,160.72 and 438,270,007.32 is: 657,149,750.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,169,879.34 : 1,693,097,160.72 = 438,270,007.32 : x
  2. Step 2: Convert to fraction form
    1,129,169,879.34/1,693,097,160.72 = 438,270,007.32/x
  3. Step 3: Cross multiply
    1,129,169,879.34x = 1,693,097,160.72 × 438,270,007.32
  4. Step 4: Simplify right side
    1,129,169,879.34x = 742,033,705,022,225,664
  5. Step 5: Solve for x
    x = 742,033,705,022,225,664/1,129,169,879.34
  6. Step 6: Final answer
    x = 657,149,750.98

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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.