Home / 381,696,005.40-572,544,008.10-355,997,880.60

Finding the Fourth Proportional to 381,696,005.40, 572,544,008.10 and 355,997,880.60

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Solution

The fourth proportional to 381,696,005.40, 572,544,008.10 and 355,997,880.60 is: 533,996,820.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,696,005.40 : 572,544,008.10 = 355,997,880.60 : x
  2. Step 2: Convert to fraction form
    381,696,005.40/572,544,008.10 = 355,997,880.60/x
  3. Step 3: Cross multiply
    381,696,005.40x = 572,544,008.10 × 355,997,880.60
  4. Step 4: Simplify right side
    381,696,005.40x = 203,824,453,433,829,248
  5. Step 5: Solve for x
    x = 203,824,453,433,829,248/381,696,005.40
  6. Step 6: Final answer
    x = 533,996,820.90

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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.