Home / 543,203,897.12-749,639,484.88-305,091,043.04

Finding the Fourth Proportional to 543,203,897.12, 749,639,484.88 and 305,091,043.04

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Solution

The fourth proportional to 543,203,897.12, 749,639,484.88 and 305,091,043.04 is: 421,035,809.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,203,897.12 : 749,639,484.88 = 305,091,043.04 : x
  2. Step 2: Convert to fraction form
    543,203,897.12/749,639,484.88 = 305,091,043.04/x
  3. Step 3: Cross multiply
    543,203,897.12x = 749,639,484.88 × 305,091,043.04
  4. Step 4: Simplify right side
    543,203,897.12x = 228,708,292,346,007,520
  5. Step 5: Solve for x
    x = 228,708,292,346,007,520/543,203,897.12
  6. Step 6: Final answer
    x = 421,035,809.13

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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.