Home / 30,421,329.39-45,601,288.61-19,069,749.63

Finding the Fourth Proportional to 30,421,329.39, 45,601,288.61 and 19,069,749.63

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Solution

The fourth proportional to 30,421,329.39, 45,601,288.61 and 19,069,749.63 is: 28,585,376.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,421,329.39 : 45,601,288.61 = 19,069,749.63 : x
  2. Step 2: Convert to fraction form
    30,421,329.39/45,601,288.61 = 19,069,749.63/x
  3. Step 3: Cross multiply
    30,421,329.39x = 45,601,288.61 × 19,069,749.63
  4. Step 4: Simplify right side
    30,421,329.39x = 869,605,156,502,721.88
  5. Step 5: Solve for x
    x = 869,605,156,502,721.88/30,421,329.39
  6. Step 6: Final answer
    x = 28,585,376.57

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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.