Home / 28,943,503.09-39,940,244.75-15,890,688.83

Finding the Fourth Proportional to 28,943,503.09, 39,940,244.75 and 15,890,688.83

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Solution

The fourth proportional to 28,943,503.09, 39,940,244.75 and 15,890,688.83 is: 21,928,168.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,943,503.09 : 39,940,244.75 = 15,890,688.83 : x
  2. Step 2: Convert to fraction form
    28,943,503.09/39,940,244.75 = 15,890,688.83/x
  3. Step 3: Cross multiply
    28,943,503.09x = 39,940,244.75 × 15,890,688.83
  4. Step 4: Simplify right side
    28,943,503.09x = 634,678,001,116,291.12
  5. Step 5: Solve for x
    x = 634,678,001,116,291.12/28,943,503.09
  6. Step 6: Final answer
    x = 21,928,168.10

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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.