Home / 421,385,282.63-581,507,406.95-233,213,942.46

Finding the Fourth Proportional to 421,385,282.63, 581,507,406.95 and 233,213,942.46

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Solution

The fourth proportional to 421,385,282.63, 581,507,406.95 and 233,213,942.46 is: 321,832,870.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,385,282.63 : 581,507,406.95 = 233,213,942.46 : x
  2. Step 2: Convert to fraction form
    421,385,282.63/581,507,406.95 = 233,213,942.46/x
  3. Step 3: Cross multiply
    421,385,282.63x = 581,507,406.95 × 233,213,942.46
  4. Step 4: Simplify right side
    421,385,282.63x = 135,615,634,943,335,056
  5. Step 5: Solve for x
    x = 135,615,634,943,335,056/421,385,282.63
  6. Step 6: Final answer
    x = 321,832,870.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.