Home / 12,886,594.40-19,329,891.60-7,147,031.60

Finding the Fourth Proportional to 12,886,594.40, 19,329,891.60 and 7,147,031.60

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Solution

The fourth proportional to 12,886,594.40, 19,329,891.60 and 7,147,031.60 is: 10,720,547.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,886,594.40 : 19,329,891.60 = 7,147,031.60 : x
  2. Step 2: Convert to fraction form
    12,886,594.40/19,329,891.60 = 7,147,031.60/x
  3. Step 3: Cross multiply
    12,886,594.40x = 19,329,891.60 × 7,147,031.60
  4. Step 4: Simplify right side
    12,886,594.40x = 138,151,346,089,774.56
  5. Step 5: Solve for x
    x = 138,151,346,089,774.56/12,886,594.40
  6. Step 6: Final answer
    x = 10,720,547.40

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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.