Home / 909,509,142.94-1,364,873,112.34-319,301,134.72

Finding the Fourth Proportional to 909,509,142.94, 1,364,873,112.34 and 319,301,134.72

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Solution

The fourth proportional to 909,509,142.94, 1,364,873,112.34 and 319,301,134.72 is: 479,165,643.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,509,142.94 : 1,364,873,112.34 = 319,301,134.72 : x
  2. Step 2: Convert to fraction form
    909,509,142.94/1,364,873,112.34 = 319,301,134.72/x
  3. Step 3: Cross multiply
    909,509,142.94x = 1,364,873,112.34 × 319,301,134.72
  4. Step 4: Simplify right side
    909,509,142.94x = 435,805,533,514,769,600
  5. Step 5: Solve for x
    x = 435,805,533,514,769,600/909,509,142.94
  6. Step 6: Final answer
    x = 479,165,643.25

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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.