Home / 358,668,115.98-538,002,173.96-249,262,128.78

Finding the Fourth Proportional to 358,668,115.98, 538,002,173.96 and 249,262,128.78

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Solution

The fourth proportional to 358,668,115.98, 538,002,173.96 and 249,262,128.78 is: 373,893,193.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,668,115.98 : 538,002,173.96 = 249,262,128.78 : x
  2. Step 2: Convert to fraction form
    358,668,115.98/538,002,173.96 = 249,262,128.78/x
  3. Step 3: Cross multiply
    358,668,115.98x = 538,002,173.96 × 249,262,128.78
  4. Step 4: Simplify right side
    358,668,115.98x = 134,103,567,169,537,488
  5. Step 5: Solve for x
    x = 134,103,567,169,537,488/358,668,115.98
  6. Step 6: Final answer
    x = 373,893,193.16

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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.