Home / 28,544,803,722.40-42,817,205,583.60-21,198,163,338.40

Finding the Fourth Proportional to 28,544,803,722.40, 42,817,205,583.60 and 21,198,163,338.40

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Solution

The fourth proportional to 28,544,803,722.40, 42,817,205,583.60 and 21,198,163,338.40 is: 31,797,245,007.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,544,803,722.40 : 42,817,205,583.60 = 21,198,163,338.40 : x
  2. Step 2: Convert to fraction form
    28,544,803,722.40/42,817,205,583.60 = 21,198,163,338.40/x
  3. Step 3: Cross multiply
    28,544,803,722.40x = 42,817,205,583.60 × 21,198,163,338.40
  4. Step 4: Simplify right side
    28,544,803,722.40x = 907,646,117,655,005,364,224
  5. Step 5: Solve for x
    x = 907,646,117,655,005,364,224/28,544,803,722.40
  6. Step 6: Final answer
    x = 31,797,245,007.60

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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.