Home / 769,823,999.70-1,154,735,999.55-524,935,986.90

Finding the Fourth Proportional to 769,823,999.70, 1,154,735,999.55 and 524,935,986.90

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Solution

The fourth proportional to 769,823,999.70, 1,154,735,999.55 and 524,935,986.90 is: 787,403,980.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,823,999.70 : 1,154,735,999.55 = 524,935,986.90 : x
  2. Step 2: Convert to fraction form
    769,823,999.70/1,154,735,999.55 = 524,935,986.90/x
  3. Step 3: Cross multiply
    769,823,999.70x = 1,154,735,999.55 × 524,935,986.90
  4. Step 4: Simplify right side
    769,823,999.70x = 606,162,481,532,737,152
  5. Step 5: Solve for x
    x = 606,162,481,532,737,152/769,823,999.70
  6. Step 6: Final answer
    x = 787,403,980.35

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1.5x scale

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.