Home / 438,686,980.29-605,453,008.03-277,765,921.15

Finding the Fourth Proportional to 438,686,980.29, 605,453,008.03 and 277,765,921.15

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Solution

The fourth proportional to 438,686,980.29, 605,453,008.03 and 277,765,921.15 is: 383,358,111.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,686,980.29 : 605,453,008.03 = 277,765,921.15 : x
  2. Step 2: Convert to fraction form
    438,686,980.29/605,453,008.03 = 277,765,921.15/x
  3. Step 3: Cross multiply
    438,686,980.29x = 605,453,008.03 × 277,765,921.15
  4. Step 4: Simplify right side
    438,686,980.29x = 168,174,212,486,283,232
  5. Step 5: Solve for x
    x = 168,174,212,486,283,232/438,686,980.29
  6. Step 6: Final answer
    x = 383,358,111.92

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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.