Home / 288,735,322.60-433,102,983.90-256,990,580.20

Finding the Fourth Proportional to 288,735,322.60, 433,102,983.90 and 256,990,580.20

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Solution

The fourth proportional to 288,735,322.60, 433,102,983.90 and 256,990,580.20 is: 385,485,870.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,735,322.60 : 433,102,983.90 = 256,990,580.20 : x
  2. Step 2: Convert to fraction form
    288,735,322.60/433,102,983.90 = 256,990,580.20/x
  3. Step 3: Cross multiply
    288,735,322.60x = 433,102,983.90 × 256,990,580.20
  4. Step 4: Simplify right side
    288,735,322.60x = 111,303,387,118,812,240
  5. Step 5: Solve for x
    x = 111,303,387,118,812,240/288,735,322.60
  6. Step 6: Final answer
    x = 385,485,870.30

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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.