Home / 734,144,228.64-1,013,139,920.16-399,638,323.68

Finding the Fourth Proportional to 734,144,228.64, 1,013,139,920.16 and 399,638,323.68

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Solution

The fourth proportional to 734,144,228.64, 1,013,139,920.16 and 399,638,323.68 is: 551,512,255.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    734,144,228.64 : 1,013,139,920.16 = 399,638,323.68 : x
  2. Step 2: Convert to fraction form
    734,144,228.64/1,013,139,920.16 = 399,638,323.68/x
  3. Step 3: Cross multiply
    734,144,228.64x = 1,013,139,920.16 × 399,638,323.68
  4. Step 4: Simplify right side
    734,144,228.64x = 404,889,539,346,031,424
  5. Step 5: Solve for x
    x = 404,889,539,346,031,424/734,144,228.64
  6. Step 6: Final answer
    x = 551,512,255.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.