Home / 251,249,164.20-376,885,556.10-78,731,605.80

Finding the Fourth Proportional to 251,249,164.20, 376,885,556.10 and 78,731,605.80

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Solution

The fourth proportional to 251,249,164.20, 376,885,556.10 and 78,731,605.80 is: 118,101,109.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,249,164.20 : 376,885,556.10 = 78,731,605.80 : x
  2. Step 2: Convert to fraction form
    251,249,164.20/376,885,556.10 = 78,731,605.80/x
  3. Step 3: Cross multiply
    251,249,164.20x = 376,885,556.10 × 78,731,605.80
  4. Step 4: Simplify right side
    251,249,164.20x = 29,672,805,034,578,988
  5. Step 5: Solve for x
    x = 29,672,805,034,578,988/251,249,164.20
  6. Step 6: Final answer
    x = 118,101,109.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.