Home / 12,996,719.10-19,509,075.45-7,328,015.10

Finding the Fourth Proportional to 12,996,719.10, 19,509,075.45 and 7,328,015.10

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Solution

The fourth proportional to 12,996,719.10, 19,509,075.45 and 7,328,015.10 is: 10,999,914.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,996,719.10 : 19,509,075.45 = 7,328,015.10 : x
  2. Step 2: Convert to fraction form
    12,996,719.10/19,509,075.45 = 7,328,015.10/x
  3. Step 3: Cross multiply
    12,996,719.10x = 19,509,075.45 × 7,328,015.10
  4. Step 4: Simplify right side
    12,996,719.10x = 142,962,799,484,639.28
  5. Step 5: Solve for x
    x = 142,962,799,484,639.28/12,996,719.10
  6. Step 6: Final answer
    x = 10,999,914.55

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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.