Home / 28,913,484-39,900,668.40-15,860,848.26

Finding the Fourth Proportional to 28,913,484, 39,900,668.40 and 15,860,848.26

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Solution

The fourth proportional to 28,913,484, 39,900,668.40 and 15,860,848.26 is: 21,888,003.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,913,484 : 39,900,668.40 = 15,860,848.26 : x
  2. Step 2: Convert to fraction form
    28,913,484/39,900,668.40 = 15,860,848.26/x
  3. Step 3: Cross multiply
    28,913,484x = 39,900,668.40 × 15,860,848.26
  4. Step 4: Simplify right side
    28,913,484x = 632,858,446,964,977
  5. Step 5: Solve for x
    x = 632,858,446,964,977/28,913,484
  6. Step 6: Final answer
    x = 21,888,003.78

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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.