Home / 70,777,970.86-106,172,981.84-21,604,869.10

Finding the Fourth Proportional to 70,777,970.86, 106,172,981.84 and 21,604,869.10

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Solution

The fourth proportional to 70,777,970.86, 106,172,981.84 and 21,604,869.10 is: 32,409,142.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,777,970.86 : 106,172,981.84 = 21,604,869.10 : x
  2. Step 2: Convert to fraction form
    70,777,970.86/106,172,981.84 = 21,604,869.10/x
  3. Step 3: Cross multiply
    70,777,970.86x = 106,172,981.84 × 21,604,869.10
  4. Step 4: Simplify right side
    70,777,970.86x = 2,293,853,374,077,747
  5. Step 5: Solve for x
    x = 2,293,853,374,077,747/70,777,970.86
  6. Step 6: Final answer
    x = 32,409,142.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.