Home / 28,488,618-39,314,237.90-15,436,230.21

Finding the Fourth Proportional to 28,488,618, 39,314,237.90 and 15,436,230.21

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Solution

The fourth proportional to 28,488,618, 39,314,237.90 and 15,436,230.21 is: 21,301,967.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,488,618 : 39,314,237.90 = 15,436,230.21 : x
  2. Step 2: Convert to fraction form
    28,488,618/39,314,237.90 = 15,436,230.21/x
  3. Step 3: Cross multiply
    28,488,618x = 39,314,237.90 × 15,436,230.21
  4. Step 4: Simplify right side
    28,488,618x = 606,863,626,677,925.88
  5. Step 5: Solve for x
    x = 606,863,626,677,925.88/28,488,618
  6. Step 6: Final answer
    x = 21,301,967.92

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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.