Home / 10,352,959.20-15,529,438.80-2,780,690.40

Finding the Fourth Proportional to 10,352,959.20, 15,529,438.80 and 2,780,690.40

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Solution

The fourth proportional to 10,352,959.20, 15,529,438.80 and 2,780,690.40 is: 4,171,035.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,352,959.20 : 15,529,438.80 = 2,780,690.40 : x
  2. Step 2: Convert to fraction form
    10,352,959.20/15,529,438.80 = 2,780,690.40/x
  3. Step 3: Cross multiply
    10,352,959.20x = 15,529,438.80 × 2,780,690.40
  4. Step 4: Simplify right side
    10,352,959.20x = 43,182,561,388,547.52
  5. Step 5: Solve for x
    x = 43,182,561,388,547.52/10,352,959.20
  6. Step 6: Final answer
    x = 4,171,035.60

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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.