Home / 20,210,878.20-30,335,344.20-10,633,130.40

Finding the Fourth Proportional to 20,210,878.20, 30,335,344.20 and 10,633,130.40

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Solution

The fourth proportional to 20,210,878.20, 30,335,344.20 and 10,633,130.40 is: 15,959,705.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,210,878.20 : 30,335,344.20 = 10,633,130.40 : x
  2. Step 2: Convert to fraction form
    20,210,878.20/30,335,344.20 = 10,633,130.40/x
  3. Step 3: Cross multiply
    20,210,878.20x = 30,335,344.20 × 10,633,130.40
  4. Step 4: Simplify right side
    20,210,878.20x = 322,559,670,607,483.69
  5. Step 5: Solve for x
    x = 322,559,670,607,483.69/20,210,878.20
  6. Step 6: Final answer
    x = 15,959,705.83

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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.