Home / 10,470,128.07-15,705,388.80-3,281,502.81

Finding the Fourth Proportional to 10,470,128.07, 15,705,388.80 and 3,281,502.81

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Solution

The fourth proportional to 10,470,128.07, 15,705,388.80 and 3,281,502.81 is: 4,922,315.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,470,128.07 : 15,705,388.80 = 3,281,502.81 : x
  2. Step 2: Convert to fraction form
    10,470,128.07/15,705,388.80 = 3,281,502.81/x
  3. Step 3: Cross multiply
    10,470,128.07x = 15,705,388.80 × 3,281,502.81
  4. Step 4: Simplify right side
    10,470,128.07x = 51,537,277,479,342.53
  5. Step 5: Solve for x
    x = 51,537,277,479,342.53/10,470,128.07
  6. Step 6: Final answer
    x = 4,922,315.86

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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.