Home / 288,729,563.40-433,094,345.10-278,525,896.20

Finding the Fourth Proportional to 288,729,563.40, 433,094,345.10 and 278,525,896.20

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Solution

The fourth proportional to 288,729,563.40, 433,094,345.10 and 278,525,896.20 is: 417,788,844.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,729,563.40 : 433,094,345.10 = 278,525,896.20 : x
  2. Step 2: Convert to fraction form
    288,729,563.40/433,094,345.10 = 278,525,896.20/x
  3. Step 3: Cross multiply
    288,729,563.40x = 433,094,345.10 × 278,525,896.20
  4. Step 4: Simplify right side
    288,729,563.40x = 120,627,990,608,129,584
  5. Step 5: Solve for x
    x = 120,627,990,608,129,584/288,729,563.40
  6. Step 6: Final answer
    x = 417,788,844.30

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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.