Home / 889,529,396.59-1,227,548,448.48-487,642,431.52

Finding the Fourth Proportional to 889,529,396.59, 1,227,548,448.48 and 487,642,431.52

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Solution

The fourth proportional to 889,529,396.59, 1,227,548,448.48 and 487,642,431.52 is: 672,945,393.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,529,396.59 : 1,227,548,448.48 = 487,642,431.52 : x
  2. Step 2: Convert to fraction form
    889,529,396.59/1,227,548,448.48 = 487,642,431.52/x
  3. Step 3: Cross multiply
    889,529,396.59x = 1,227,548,448.48 × 487,642,431.52
  4. Step 4: Simplify right side
    889,529,396.59x = 598,604,710,225,390,592
  5. Step 5: Solve for x
    x = 598,604,710,225,390,592/889,529,396.59
  6. Step 6: Final answer
    x = 672,945,393.96

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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.