Home / 145,372,661.42-200,616,683.58-79,293,176.91

Finding the Fourth Proportional to 145,372,661.42, 200,616,683.58 and 79,293,176.91

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Solution

The fourth proportional to 145,372,661.42, 200,616,683.58 and 79,293,176.91 is: 109,425,899.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,372,661.42 : 200,616,683.58 = 79,293,176.91 : x
  2. Step 2: Convert to fraction form
    145,372,661.42/200,616,683.58 = 79,293,176.91/x
  3. Step 3: Cross multiply
    145,372,661.42x = 200,616,683.58 × 79,293,176.91
  4. Step 4: Simplify right side
    145,372,661.42x = 15,907,534,182,206,432
  5. Step 5: Solve for x
    x = 15,907,534,182,206,432/145,372,661.42
  6. Step 6: Final answer
    x = 109,425,899.12

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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.