Home / 12,909,315.96-19,366,075.54-3,812,333.56

Finding the Fourth Proportional to 12,909,315.96, 19,366,075.54 and 3,812,333.56

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Solution

The fourth proportional to 12,909,315.96, 19,366,075.54 and 3,812,333.56 is: 5,719,120.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,909,315.96 : 19,366,075.54 = 3,812,333.56 : x
  2. Step 2: Convert to fraction form
    12,909,315.96/19,366,075.54 = 3,812,333.56/x
  3. Step 3: Cross multiply
    12,909,315.96x = 19,366,075.54 × 3,812,333.56
  4. Step 4: Simplify right side
    12,909,315.96x = 73,829,939,706,637.12
  5. Step 5: Solve for x
    x = 73,829,939,706,637.12/12,909,315.96
  6. Step 6: Final answer
    x = 5,719,120.98

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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.