Home / 487,463,111.48-672,642,342.05-272,893,505.64

Finding the Fourth Proportional to 487,463,111.48, 672,642,342.05 and 272,893,505.64

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Solution

The fourth proportional to 487,463,111.48, 672,642,342.05 and 272,893,505.64 is: 376,561,266.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,463,111.48 : 672,642,342.05 = 272,893,505.64 : x
  2. Step 2: Convert to fraction form
    487,463,111.48/672,642,342.05 = 272,893,505.64/x
  3. Step 3: Cross multiply
    487,463,111.48x = 672,642,342.05 × 272,893,505.64
  4. Step 4: Simplify right side
    487,463,111.48x = 183,559,726,762,560,000
  5. Step 5: Solve for x
    x = 183,559,726,762,560,000/487,463,111.48
  6. Step 6: Final answer
    x = 376,561,266.77

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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.