Home / 1,118,346,300.24-1,677,761,600.49-428,253,578.81

Finding the Fourth Proportional to 1,118,346,300.24, 1,677,761,600.49 and 428,253,578.81

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Solution

The fourth proportional to 1,118,346,300.24, 1,677,761,600.49 and 428,253,578.81 is: 642,473,095.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,346,300.24 : 1,677,761,600.49 = 428,253,578.81 : x
  2. Step 2: Convert to fraction form
    1,118,346,300.24/1,677,761,600.49 = 428,253,578.81/x
  3. Step 3: Cross multiply
    1,118,346,300.24x = 1,677,761,600.49 × 428,253,578.81
  4. Step 4: Simplify right side
    1,118,346,300.24x = 718,507,409,799,835,904
  5. Step 5: Solve for x
    x = 718,507,409,799,835,904/1,118,346,300.24
  6. Step 6: Final answer
    x = 642,473,095.90

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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.