Home / 1,393,123,717.24-2,089,987,908.36-423,750,139

Finding the Fourth Proportional to 1,393,123,717.24, 2,089,987,908.36 and 423,750,139

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Solution

The fourth proportional to 1,393,123,717.24, 2,089,987,908.36 and 423,750,139 is: 635,717,169.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393,123,717.24 : 2,089,987,908.36 = 423,750,139 : x
  2. Step 2: Convert to fraction form
    1,393,123,717.24/2,089,987,908.36 = 423,750,139/x
  3. Step 3: Cross multiply
    1,393,123,717.24x = 2,089,987,908.36 × 423,750,139
  4. Step 4: Simplify right side
    1,393,123,717.24x = 885,632,666,675,869,184
  5. Step 5: Solve for x
    x = 885,632,666,675,869,184/1,393,123,717.24
  6. Step 6: Final answer
    x = 635,717,169.78

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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.