Home / 354,312,021.40-531,468,032.10-198,706,096.60

Finding the Fourth Proportional to 354,312,021.40, 531,468,032.10 and 198,706,096.60

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Solution

The fourth proportional to 354,312,021.40, 531,468,032.10 and 198,706,096.60 is: 298,059,144.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,312,021.40 : 531,468,032.10 = 198,706,096.60 : x
  2. Step 2: Convert to fraction form
    354,312,021.40/531,468,032.10 = 198,706,096.60/x
  3. Step 3: Cross multiply
    354,312,021.40x = 531,468,032.10 × 198,706,096.60
  4. Step 4: Simplify right side
    354,312,021.40x = 105,605,938,126,274,496
  5. Step 5: Solve for x
    x = 105,605,938,126,274,496/354,312,021.40
  6. Step 6: Final answer
    x = 298,059,144.90

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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.