Home / 198,398,572.79-297,431,389.25-87,716,372.90

Finding the Fourth Proportional to 198,398,572.79, 297,431,389.25 and 87,716,372.90

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Solution

The fourth proportional to 198,398,572.79, 297,431,389.25 and 87,716,372.90 is: 131,500,959.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,398,572.79 : 297,431,389.25 = 87,716,372.90 : x
  2. Step 2: Convert to fraction form
    198,398,572.79/297,431,389.25 = 87,716,372.90/x
  3. Step 3: Cross multiply
    198,398,572.79x = 297,431,389.25 × 87,716,372.90
  4. Step 4: Simplify right side
    198,398,572.79x = 26,089,602,649,692,312
  5. Step 5: Solve for x
    x = 26,089,602,649,692,312/198,398,572.79
  6. Step 6: Final answer
    x = 131,500,959.32

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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.