Home / 28,511,465.61-39,346,332.90-15,459,164.49

Finding the Fourth Proportional to 28,511,465.61, 39,346,332.90 and 15,459,164.49

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Solution

The fourth proportional to 28,511,465.61, 39,346,332.90 and 15,459,164.49 is: 21,333,923.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,511,465.61 : 39,346,332.90 = 15,459,164.49 : x
  2. Step 2: Convert to fraction form
    28,511,465.61/39,346,332.90 = 15,459,164.49/x
  3. Step 3: Cross multiply
    28,511,465.61x = 39,346,332.90 × 15,459,164.49
  4. Step 4: Simplify right side
    28,511,465.61x = 608,261,432,379,398.75
  5. Step 5: Solve for x
    x = 608,261,432,379,398.75/28,511,465.61
  6. Step 6: Final answer
    x = 21,333,923.72

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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.