Home / 279,313,428.02-385,464,488.37-155,554,104.98

Finding the Fourth Proportional to 279,313,428.02, 385,464,488.37 and 155,554,104.98

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Solution

The fourth proportional to 279,313,428.02, 385,464,488.37 and 155,554,104.98 is: 214,671,324.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,313,428.02 : 385,464,488.37 = 155,554,104.98 : x
  2. Step 2: Convert to fraction form
    279,313,428.02/385,464,488.37 = 155,554,104.98/x
  3. Step 3: Cross multiply
    279,313,428.02x = 385,464,488.37 × 155,554,104.98
  4. Step 4: Simplify right side
    279,313,428.02x = 59,960,583,489,968,968
  5. Step 5: Solve for x
    x = 59,960,583,489,968,968/279,313,428.02
  6. Step 6: Final answer
    x = 214,671,324.31

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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.