Home / 10,465,987.20-15,698,980.80-9,835,612.80

Finding the Fourth Proportional to 10,465,987.20, 15,698,980.80 and 9,835,612.80

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Solution

The fourth proportional to 10,465,987.20, 15,698,980.80 and 9,835,612.80 is: 14,753,419.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,465,987.20 : 15,698,980.80 = 9,835,612.80 : x
  2. Step 2: Convert to fraction form
    10,465,987.20/15,698,980.80 = 9,835,612.80/x
  3. Step 3: Cross multiply
    10,465,987.20x = 15,698,980.80 × 9,835,612.80
  4. Step 4: Simplify right side
    10,465,987.20x = 154,409,096,503,434.25
  5. Step 5: Solve for x
    x = 154,409,096,503,434.25/10,465,987.20
  6. Step 6: Final answer
    x = 14,753,419.20

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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.