Home / 145,065,986.10-217,598,979.15-131,673,672.90

Finding the Fourth Proportional to 145,065,986.10, 217,598,979.15 and 131,673,672.90

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Solution

The fourth proportional to 145,065,986.10, 217,598,979.15 and 131,673,672.90 is: 197,510,509.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,065,986.10 : 217,598,979.15 = 131,673,672.90 : x
  2. Step 2: Convert to fraction form
    145,065,986.10/217,598,979.15 = 131,673,672.90/x
  3. Step 3: Cross multiply
    145,065,986.10x = 217,598,979.15 × 131,673,672.90
  4. Step 4: Simplify right side
    145,065,986.10x = 28,652,056,803,971,024
  5. Step 5: Solve for x
    x = 28,652,056,803,971,024/145,065,986.10
  6. Step 6: Final answer
    x = 197,510,509.35

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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.