Home / 55,355,871.60-83,033,807.40-21,278,329.20

Finding the Fourth Proportional to 55,355,871.60, 83,033,807.40 and 21,278,329.20

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Solution

The fourth proportional to 55,355,871.60, 83,033,807.40 and 21,278,329.20 is: 31,917,493.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,355,871.60 : 83,033,807.40 = 21,278,329.20 : x
  2. Step 2: Convert to fraction form
    55,355,871.60/83,033,807.40 = 21,278,329.20/x
  3. Step 3: Cross multiply
    55,355,871.60x = 83,033,807.40 × 21,278,329.20
  4. Step 4: Simplify right side
    55,355,871.60x = 1,766,820,688,586,596.25
  5. Step 5: Solve for x
    x = 1,766,820,688,586,596.25/55,355,871.60
  6. Step 6: Final answer
    x = 31,917,493.80

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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.