Home / 639,389,602.20-882,348,337.31-357,136,059.36

Finding the Fourth Proportional to 639,389,602.20, 882,348,337.31 and 357,136,059.36

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Solution

The fourth proportional to 639,389,602.20, 882,348,337.31 and 357,136,059.36 is: 492,842,559.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,389,602.20 : 882,348,337.31 = 357,136,059.36 : x
  2. Step 2: Convert to fraction form
    639,389,602.20/882,348,337.31 = 357,136,059.36/x
  3. Step 3: Cross multiply
    639,389,602.20x = 882,348,337.31 × 357,136,059.36
  4. Step 4: Simplify right side
    639,389,602.20x = 315,118,408,167,955,776
  5. Step 5: Solve for x
    x = 315,118,408,167,955,776/639,389,602.20
  6. Step 6: Final answer
    x = 492,842,559.66

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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.