Home / 13,106,815.28-19,636,308.08-7,319,422.80

Finding the Fourth Proportional to 13,106,815.28, 19,636,308.08 and 7,319,422.80

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Solution

The fourth proportional to 13,106,815.28, 19,636,308.08 and 7,319,422.80 is: 10,965,779.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,106,815.28 : 19,636,308.08 = 7,319,422.80 : x
  2. Step 2: Convert to fraction form
    13,106,815.28/19,636,308.08 = 7,319,422.80/x
  3. Step 3: Cross multiply
    13,106,815.28x = 19,636,308.08 × 7,319,422.80
  4. Step 4: Simplify right side
    13,106,815.28x = 143,726,441,068,576.22
  5. Step 5: Solve for x
    x = 143,726,441,068,576.22/13,106,815.28
  6. Step 6: Final answer
    x = 10,965,779.10

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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.