Home / 12,276,743.40-18,415,115.10-10,387,175.40

Finding the Fourth Proportional to 12,276,743.40, 18,415,115.10 and 10,387,175.40

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Solution

The fourth proportional to 12,276,743.40, 18,415,115.10 and 10,387,175.40 is: 15,580,763.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,276,743.40 : 18,415,115.10 = 10,387,175.40 : x
  2. Step 2: Convert to fraction form
    12,276,743.40/18,415,115.10 = 10,387,175.40/x
  3. Step 3: Cross multiply
    12,276,743.40x = 18,415,115.10 × 10,387,175.40
  4. Step 4: Simplify right side
    12,276,743.40x = 191,281,030,554,888.56
  5. Step 5: Solve for x
    x = 191,281,030,554,888.56/12,276,743.40
  6. Step 6: Final answer
    x = 15,580,763.10

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1.5x scale

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.