Home / 489,996,089.90-676,209,913.71-281,190,427.82

Finding the Fourth Proportional to 489,996,089.90, 676,209,913.71 and 281,190,427.82

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Solution

The fourth proportional to 489,996,089.90, 676,209,913.71 and 281,190,427.82 is: 388,051,576.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,996,089.90 : 676,209,913.71 = 281,190,427.82 : x
  2. Step 2: Convert to fraction form
    489,996,089.90/676,209,913.71 = 281,190,427.82/x
  3. Step 3: Cross multiply
    489,996,089.90x = 676,209,913.71 × 281,190,427.82
  4. Step 4: Simplify right side
    489,996,089.90x = 190,143,754,932,240,192
  5. Step 5: Solve for x
    x = 190,143,754,932,240,192/489,996,089.90
  6. Step 6: Final answer
    x = 388,051,576.03

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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.