Home / 70,429,593.45-105,553,463.94-31,539,571.46

Finding the Fourth Proportional to 70,429,593.45, 105,553,463.94 and 31,539,571.46

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Solution

The fourth proportional to 70,429,593.45, 105,553,463.94 and 31,539,571.46 is: 47,268,638.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,429,593.45 : 105,553,463.94 = 31,539,571.46 : x
  2. Step 2: Convert to fraction form
    70,429,593.45/105,553,463.94 = 31,539,571.46/x
  3. Step 3: Cross multiply
    70,429,593.45x = 105,553,463.94 × 31,539,571.46
  4. Step 4: Simplify right side
    70,429,593.45x = 3,329,111,018,786,163
  5. Step 5: Solve for x
    x = 3,329,111,018,786,163/70,429,593.45
  6. Step 6: Final answer
    x = 47,268,638.87

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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.