Home / 145,787,915.76-201,191,522.78-80,602,018.80

Finding the Fourth Proportional to 145,787,915.76, 201,191,522.78 and 80,602,018.80

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Solution

The fourth proportional to 145,787,915.76, 201,191,522.78 and 80,602,018.80 is: 111,233,107.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,787,915.76 : 201,191,522.78 = 80,602,018.80 : x
  2. Step 2: Convert to fraction form
    145,787,915.76/201,191,522.78 = 80,602,018.80/x
  3. Step 3: Cross multiply
    145,787,915.76x = 201,191,522.78 × 80,602,018.80
  4. Step 4: Simplify right side
    145,787,915.76x = 16,216,442,901,514,188
  5. Step 5: Solve for x
    x = 16,216,442,901,514,188/145,787,915.76
  6. Step 6: Final answer
    x = 111,233,107.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.