Home / 12,768,208.79-19,160,988.28-5,196,552.35

Finding the Fourth Proportional to 12,768,208.79, 19,160,988.28 and 5,196,552.35

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Solution

The fourth proportional to 12,768,208.79, 19,160,988.28 and 5,196,552.35 is: 7,798,359.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,768,208.79 : 19,160,988.28 = 5,196,552.35 : x
  2. Step 2: Convert to fraction form
    12,768,208.79/19,160,988.28 = 5,196,552.35/x
  3. Step 3: Cross multiply
    12,768,208.79x = 19,160,988.28 × 5,196,552.35
  4. Step 4: Simplify right side
    12,768,208.79x = 99,571,078,674,756.45
  5. Step 5: Solve for x
    x = 99,571,078,674,756.45/12,768,208.79
  6. Step 6: Final answer
    x = 7,798,359.21

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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.