Home / 13,211,889,415.20-19,817,834,122.80-5,355,065,671.20

Finding the Fourth Proportional to 13,211,889,415.20, 19,817,834,122.80 and 5,355,065,671.20

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Solution

The fourth proportional to 13,211,889,415.20, 19,817,834,122.80 and 5,355,065,671.20 is: 8,032,598,506.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,211,889,415.20 : 19,817,834,122.80 = 5,355,065,671.20 : x
  2. Step 2: Convert to fraction form
    13,211,889,415.20/19,817,834,122.80 = 5,355,065,671.20/x
  3. Step 3: Cross multiply
    13,211,889,415.20x = 19,817,834,122.80 × 5,355,065,671.20
  4. Step 4: Simplify right side
    13,211,889,415.20x = 106,125,803,188,542,242,816
  5. Step 5: Solve for x
    x = 106,125,803,188,542,242,816/13,211,889,415.20
  6. Step 6: Final answer
    x = 8,032,598,506.80

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Double scale
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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.