Home / 1,393,123,718.24-2,089,987,909.86-423,750,140

Finding the Fourth Proportional to 1,393,123,718.24, 2,089,987,909.86 and 423,750,140

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Solution

The fourth proportional to 1,393,123,718.24, 2,089,987,909.86 and 423,750,140 is: 635,717,171.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393,123,718.24 : 2,089,987,909.86 = 423,750,140 : x
  2. Step 2: Convert to fraction form
    1,393,123,718.24/2,089,987,909.86 = 423,750,140/x
  3. Step 3: Cross multiply
    1,393,123,718.24x = 2,089,987,909.86 × 423,750,140
  4. Step 4: Simplify right side
    1,393,123,718.24x = 885,632,669,401,482,368
  5. Step 5: Solve for x
    x = 885,632,669,401,482,368/1,393,123,718.24
  6. Step 6: Final answer
    x = 635,717,171.28

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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.