Home / 278,946,037.02-385,476,433.43-209,210,349.00

Finding the Fourth Proportional to 278,946,037.02, 385,476,433.43 and 209,210,349.00

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Solution

The fourth proportional to 278,946,037.02, 385,476,433.43 and 209,210,349.00 is: 289,108,459.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,946,037.02 : 385,476,433.43 = 209,210,349.00 : x
  2. Step 2: Convert to fraction form
    278,946,037.02/385,476,433.43 = 209,210,349.00/x
  3. Step 3: Cross multiply
    278,946,037.02x = 385,476,433.43 × 209,210,349.00
  4. Step 4: Simplify right side
    278,946,037.02x = 80,645,659,170,642,592
  5. Step 5: Solve for x
    x = 80,645,659,170,642,592/278,946,037.02
  6. Step 6: Final answer
    x = 289,108,459.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.