Home / 12,645,878.40-18,912,830.40-10,630,339.20

Finding the Fourth Proportional to 12,645,878.40, 18,912,830.40 and 10,630,339.20

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Solution

The fourth proportional to 12,645,878.40, 18,912,830.40 and 10,630,339.20 is: 15,898,445.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,645,878.40 : 18,912,830.40 = 10,630,339.20 : x
  2. Step 2: Convert to fraction form
    12,645,878.40/18,912,830.40 = 10,630,339.20/x
  3. Step 3: Cross multiply
    12,645,878.40x = 18,912,830.40 × 10,630,339.20
  4. Step 4: Simplify right side
    12,645,878.40x = 201,049,802,384,071.66
  5. Step 5: Solve for x
    x = 201,049,802,384,071.66/12,645,878.40
  6. Step 6: Final answer
    x = 15,898,445.01

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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.