Home / 20,842,298.46-28,763,967.51-13,113,965.34

Finding the Fourth Proportional to 20,842,298.46, 28,763,967.51 and 13,113,965.34

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Solution

The fourth proportional to 20,842,298.46, 28,763,967.51 and 13,113,965.34 is: 18,098,276.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,842,298.46 : 28,763,967.51 = 13,113,965.34 : x
  2. Step 2: Convert to fraction form
    20,842,298.46/28,763,967.51 = 13,113,965.34/x
  3. Step 3: Cross multiply
    20,842,298.46x = 28,763,967.51 × 13,113,965.34
  4. Step 4: Simplify right side
    20,842,298.46x = 377,209,672,967,026.12
  5. Step 5: Solve for x
    x = 377,209,672,967,026.12/20,842,298.46
  6. Step 6: Final answer
    x = 18,098,276.14

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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.