Home / 761,396,598.28-1,142,085,647.62-208,698,561.33

Finding the Fourth Proportional to 761,396,598.28, 1,142,085,647.62 and 208,698,561.33

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Solution

The fourth proportional to 761,396,598.28, 1,142,085,647.62 and 208,698,561.33 is: 313,045,306.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,396,598.28 : 1,142,085,647.62 = 208,698,561.33 : x
  2. Step 2: Convert to fraction form
    761,396,598.28/1,142,085,647.62 = 208,698,561.33/x
  3. Step 3: Cross multiply
    761,396,598.28x = 1,142,085,647.62 × 208,698,561.33
  4. Step 4: Simplify right side
    761,396,598.28x = 238,351,631,573,935,328
  5. Step 5: Solve for x
    x = 238,351,631,573,935,328/761,396,598.28
  6. Step 6: Final answer
    x = 313,045,306.63

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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.