Home / 824,903,076.47-1,138,387,820.42-448,581,673.79

Finding the Fourth Proportional to 824,903,076.47, 1,138,387,820.42 and 448,581,673.79

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Solution

The fourth proportional to 824,903,076.47, 1,138,387,820.42 and 448,581,673.79 is: 619,054,442.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,903,076.47 : 1,138,387,820.42 = 448,581,673.79 : x
  2. Step 2: Convert to fraction form
    824,903,076.47/1,138,387,820.42 = 448,581,673.79/x
  3. Step 3: Cross multiply
    824,903,076.47x = 1,138,387,820.42 × 448,581,673.79
  4. Step 4: Simplify right side
    824,903,076.47x = 510,659,913,905,851,968
  5. Step 5: Solve for x
    x = 510,659,913,905,851,968/824,903,076.47
  6. Step 6: Final answer
    x = 619,054,442.24

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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.