Home / 13,290,011.40-19,929,112.20-5,200,298.40

Finding the Fourth Proportional to 13,290,011.40, 19,929,112.20 and 5,200,298.40

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Solution

The fourth proportional to 13,290,011.40, 19,929,112.20 and 5,200,298.40 is: 7,798,137.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,290,011.40 : 19,929,112.20 = 5,200,298.40 : x
  2. Step 2: Convert to fraction form
    13,290,011.40/19,929,112.20 = 5,200,298.40/x
  3. Step 3: Cross multiply
    13,290,011.40x = 19,929,112.20 × 5,200,298.40
  4. Step 4: Simplify right side
    13,290,011.40x = 103,637,330,287,080.48
  5. Step 5: Solve for x
    x = 103,637,330,287,080.48/13,290,011.40
  6. Step 6: Final answer
    x = 7,798,137.05

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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.