Home / 469,105,395.39-647,353,120.23-257,411,575.64

Finding the Fourth Proportional to 469,105,395.39, 647,353,120.23 and 257,411,575.64

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Solution

The fourth proportional to 469,105,395.39, 647,353,120.23 and 257,411,575.64 is: 355,221,211.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,105,395.39 : 647,353,120.23 = 257,411,575.64 : x
  2. Step 2: Convert to fraction form
    469,105,395.39/647,353,120.23 = 257,411,575.64/x
  3. Step 3: Cross multiply
    469,105,395.39x = 647,353,120.23 × 257,411,575.64
  4. Step 4: Simplify right side
    469,105,395.39x = 166,636,186,670,637,888
  5. Step 5: Solve for x
    x = 166,636,186,670,637,888/469,105,395.39
  6. Step 6: Final answer
    x = 355,221,211.07

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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.