Home / 354,296,021.40-531,444,032.10-266,997,979.80

Finding the Fourth Proportional to 354,296,021.40, 531,444,032.10 and 266,997,979.80

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Solution

The fourth proportional to 354,296,021.40, 531,444,032.10 and 266,997,979.80 is: 400,496,969.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,296,021.40 : 531,444,032.10 = 266,997,979.80 : x
  2. Step 2: Convert to fraction form
    354,296,021.40/531,444,032.10 = 266,997,979.80/x
  3. Step 3: Cross multiply
    354,296,021.40x = 531,444,032.10 × 266,997,979.80
  4. Step 4: Simplify right side
    354,296,021.40x = 141,894,482,947,466,368
  5. Step 5: Solve for x
    x = 141,894,482,947,466,368/354,296,021.40
  6. Step 6: Final answer
    x = 400,496,969.70

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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.