Home / 538,910,814.80-808,366,222.20-193,917,688.40

Finding the Fourth Proportional to 538,910,814.80, 808,366,222.20 and 193,917,688.40

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Solution

The fourth proportional to 538,910,814.80, 808,366,222.20 and 193,917,688.40 is: 290,876,532.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,910,814.80 : 808,366,222.20 = 193,917,688.40 : x
  2. Step 2: Convert to fraction form
    538,910,814.80/808,366,222.20 = 193,917,688.40/x
  3. Step 3: Cross multiply
    538,910,814.80x = 808,366,222.20 × 193,917,688.40
  4. Step 4: Simplify right side
    538,910,814.80x = 156,756,509,189,664,768
  5. Step 5: Solve for x
    x = 156,756,509,189,664,768/538,910,814.80
  6. Step 6: Final answer
    x = 290,876,532.60

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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.