Home / 70,212,915.51-105,329,448.05-21,695,005.77

Finding the Fourth Proportional to 70,212,915.51, 105,329,448.05 and 21,695,005.77

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Solution

The fourth proportional to 70,212,915.51, 105,329,448.05 and 21,695,005.77 is: 32,545,621.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,212,915.51 : 105,329,448.05 = 21,695,005.77 : x
  2. Step 2: Convert to fraction form
    70,212,915.51/105,329,448.05 = 21,695,005.77/x
  3. Step 3: Cross multiply
    70,212,915.51x = 105,329,448.05 × 21,695,005.77
  4. Step 4: Simplify right side
    70,212,915.51x = 2,285,122,983,087,190
  5. Step 5: Solve for x
    x = 2,285,122,983,087,190/70,212,915.51
  6. Step 6: Final answer
    x = 32,545,621.65

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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.