Home / 323,872,666.40-485,808,999.60-292,631,808.80

Finding the Fourth Proportional to 323,872,666.40, 485,808,999.60 and 292,631,808.80

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Solution

The fourth proportional to 323,872,666.40, 485,808,999.60 and 292,631,808.80 is: 438,947,713.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,872,666.40 : 485,808,999.60 = 292,631,808.80 : x
  2. Step 2: Convert to fraction form
    323,872,666.40/485,808,999.60 = 292,631,808.80/x
  3. Step 3: Cross multiply
    323,872,666.40x = 485,808,999.60 × 292,631,808.80
  4. Step 4: Simplify right side
    323,872,666.40x = 142,163,166,284,266,496
  5. Step 5: Solve for x
    x = 142,163,166,284,266,496/323,872,666.40
  6. Step 6: Final answer
    x = 438,947,713.20

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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.