Home / 289,384,374.40-434,076,561.60-267,213,443.20

Finding the Fourth Proportional to 289,384,374.40, 434,076,561.60 and 267,213,443.20

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Solution

The fourth proportional to 289,384,374.40, 434,076,561.60 and 267,213,443.20 is: 400,820,164.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,384,374.40 : 434,076,561.60 = 267,213,443.20 : x
  2. Step 2: Convert to fraction form
    289,384,374.40/434,076,561.60 = 267,213,443.20/x
  3. Step 3: Cross multiply
    289,384,374.40x = 434,076,561.60 × 267,213,443.20
  4. Step 4: Simplify right side
    289,384,374.40x = 115,991,092,637,552,896
  5. Step 5: Solve for x
    x = 115,991,092,637,552,896/289,384,374.40
  6. Step 6: Final answer
    x = 400,820,164.80

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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.