Home / 288,735,312.10-433,102,968.15-256,990,569.70

Finding the Fourth Proportional to 288,735,312.10, 433,102,968.15 and 256,990,569.70

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Solution

The fourth proportional to 288,735,312.10, 433,102,968.15 and 256,990,569.70 is: 385,485,854.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,735,312.10 : 433,102,968.15 = 256,990,569.70 : x
  2. Step 2: Convert to fraction form
    288,735,312.10/433,102,968.15 = 256,990,569.70/x
  3. Step 3: Cross multiply
    288,735,312.10x = 433,102,968.15 × 256,990,569.70
  4. Step 4: Simplify right side
    288,735,312.10x = 111,303,378,523,629,440
  5. Step 5: Solve for x
    x = 111,303,378,523,629,440/288,735,312.10
  6. Step 6: Final answer
    x = 385,485,854.55

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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.