Home / 18,927,721.40-28,380,210.64-7,399,457.96

Finding the Fourth Proportional to 18,927,721.40, 28,380,210.64 and 7,399,457.96

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Solution

The fourth proportional to 18,927,721.40, 28,380,210.64 and 7,399,457.96 is: 11,094,741.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,927,721.40 : 28,380,210.64 = 7,399,457.96 : x
  2. Step 2: Convert to fraction form
    18,927,721.40/28,380,210.64 = 7,399,457.96/x
  3. Step 3: Cross multiply
    18,927,721.40x = 28,380,210.64 × 7,399,457.96
  4. Step 4: Simplify right side
    18,927,721.40x = 209,998,175,366,225
  5. Step 5: Solve for x
    x = 209,998,175,366,225/18,927,721.40
  6. Step 6: Final answer
    x = 11,094,741.46

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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.