Home / 469,105,394.88-647,353,119.53-257,411,575.14

Finding the Fourth Proportional to 469,105,394.88, 647,353,119.53 and 257,411,575.14

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Solution

The fourth proportional to 469,105,394.88, 647,353,119.53 and 257,411,575.14 is: 355,221,210.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,105,394.88 : 647,353,119.53 = 257,411,575.14 : x
  2. Step 2: Convert to fraction form
    469,105,394.88/647,353,119.53 = 257,411,575.14/x
  3. Step 3: Cross multiply
    469,105,394.88x = 647,353,119.53 × 257,411,575.14
  4. Step 4: Simplify right side
    469,105,394.88x = 166,636,186,170,009,984
  5. Step 5: Solve for x
    x = 166,636,186,170,009,984/469,105,394.88
  6. Step 6: Final answer
    x = 355,221,210.39

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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.