Home / 19,300,752.83-28,956,732.53-7,780,274.71

Finding the Fourth Proportional to 19,300,752.83, 28,956,732.53 and 7,780,274.71

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Solution

The fourth proportional to 19,300,752.83, 28,956,732.53 and 7,780,274.71 is: 11,672,670.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,300,752.83 : 28,956,732.53 = 7,780,274.71 : x
  2. Step 2: Convert to fraction form
    19,300,752.83/28,956,732.53 = 7,780,274.71/x
  3. Step 3: Cross multiply
    19,300,752.83x = 28,956,732.53 × 7,780,274.71
  4. Step 4: Simplify right side
    19,300,752.83x = 225,291,333,676,100.09
  5. Step 5: Solve for x
    x = 225,291,333,676,100.09/19,300,752.83
  6. Step 6: Final answer
    x = 11,672,670.78

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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.