Home / 145,627,915.14-200,967,207.85-79,549,330.14

Finding the Fourth Proportional to 145,627,915.14, 200,967,207.85 and 79,549,330.14

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Solution

The fourth proportional to 145,627,915.14, 200,967,207.85 and 79,549,330.14 is: 109,778,449.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,627,915.14 : 200,967,207.85 = 79,549,330.14 : x
  2. Step 2: Convert to fraction form
    145,627,915.14/200,967,207.85 = 79,549,330.14/x
  3. Step 3: Cross multiply
    145,627,915.14x = 200,967,207.85 × 79,549,330.14
  4. Step 4: Simplify right side
    145,627,915.14x = 15,986,806,763,369,942
  5. Step 5: Solve for x
    x = 15,986,806,763,369,942/145,627,915.14
  6. Step 6: Final answer
    x = 109,778,449.75

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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.