Home / 145,617,128.15-200,950,442.62-79,537,668.55

Finding the Fourth Proportional to 145,617,128.15, 200,950,442.62 and 79,537,668.55

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Solution

The fourth proportional to 145,617,128.15, 200,950,442.62 and 79,537,668.55 is: 109,761,330.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,617,128.15 : 200,950,442.62 = 79,537,668.55 : x
  2. Step 2: Convert to fraction form
    145,617,128.15/200,950,442.62 = 79,537,668.55/x
  3. Step 3: Cross multiply
    145,617,128.15x = 200,950,442.62 × 79,537,668.55
  4. Step 4: Simplify right side
    145,617,128.15x = 15,983,129,699,384,134
  5. Step 5: Solve for x
    x = 15,983,129,699,384,134/145,617,128.15
  6. Step 6: Final answer
    x = 109,761,330.30

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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.