Home / 490,564,075.28-735,955,487.46-140,782,876.64

Finding the Fourth Proportional to 490,564,075.28, 735,955,487.46 and 140,782,876.64

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Solution

The fourth proportional to 490,564,075.28, 735,955,487.46 and 140,782,876.64 is: 211,205,703.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,564,075.28 : 735,955,487.46 = 140,782,876.64 : x
  2. Step 2: Convert to fraction form
    490,564,075.28/735,955,487.46 = 140,782,876.64/x
  3. Step 3: Cross multiply
    490,564,075.28x = 735,955,487.46 × 140,782,876.64
  4. Step 4: Simplify right side
    490,564,075.28x = 103,609,930,603,612,240
  5. Step 5: Solve for x
    x = 103,609,930,603,612,240/490,564,075.28
  6. Step 6: Final answer
    x = 211,205,703.44

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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.