Home / 279,407,818.26-385,599,719.84-153,959,862.47

Finding the Fourth Proportional to 279,407,818.26, 385,599,719.84 and 153,959,862.47

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Solution

The fourth proportional to 279,407,818.26, 385,599,719.84 and 153,959,862.47 is: 212,473,939.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,407,818.26 : 385,599,719.84 = 153,959,862.47 : x
  2. Step 2: Convert to fraction form
    279,407,818.26/385,599,719.84 = 153,959,862.47/x
  3. Step 3: Cross multiply
    279,407,818.26x = 385,599,719.84 × 153,959,862.47
  4. Step 4: Simplify right side
    279,407,818.26x = 59,366,879,832,339,128
  5. Step 5: Solve for x
    x = 59,366,879,832,339,128/279,407,818.26
  6. Step 6: Final answer
    x = 212,473,939.36

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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.