Home / 21,204,155.16-31,788,016.32-7,369,316.42

Finding the Fourth Proportional to 21,204,155.16, 31,788,016.32 and 7,369,316.42

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Solution

The fourth proportional to 21,204,155.16, 31,788,016.32 and 7,369,316.42 is: 11,047,643.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,204,155.16 : 31,788,016.32 = 7,369,316.42 : x
  2. Step 2: Convert to fraction form
    21,204,155.16/31,788,016.32 = 7,369,316.42/x
  3. Step 3: Cross multiply
    21,204,155.16x = 31,788,016.32 × 7,369,316.42
  4. Step 4: Simplify right side
    21,204,155.16x = 234,255,950,467,263.91
  5. Step 5: Solve for x
    x = 234,255,950,467,263.91/21,204,155.16
  6. Step 6: Final answer
    x = 11,047,643.67

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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.