Home / 28,262,811.60-42,397,327.80-10,315,803.60

Finding the Fourth Proportional to 28,262,811.60, 42,397,327.80 and 10,315,803.60

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Solution

The fourth proportional to 28,262,811.60, 42,397,327.80 and 10,315,803.60 is: 15,474,840.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,262,811.60 : 42,397,327.80 = 10,315,803.60 : x
  2. Step 2: Convert to fraction form
    28,262,811.60/42,397,327.80 = 10,315,803.60/x
  3. Step 3: Cross multiply
    28,262,811.60x = 42,397,327.80 × 10,315,803.60
  4. Step 4: Simplify right side
    28,262,811.60x = 437,362,506,749,620.06
  5. Step 5: Solve for x
    x = 437,362,506,749,620.06/28,262,811.60
  6. Step 6: Final answer
    x = 15,474,840.68

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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.