Home / 639,389,598.87-882,348,332.72-357,136,056.03

Finding the Fourth Proportional to 639,389,598.87, 882,348,332.72 and 357,136,056.03

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Solution

The fourth proportional to 639,389,598.87, 882,348,332.72 and 357,136,056.03 is: 492,842,555.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,389,598.87 : 882,348,332.72 = 357,136,056.03 : x
  2. Step 2: Convert to fraction form
    639,389,598.87/882,348,332.72 = 357,136,056.03/x
  3. Step 3: Cross multiply
    639,389,598.87x = 882,348,332.72 × 357,136,056.03
  4. Step 4: Simplify right side
    639,389,598.87x = 315,118,403,589,820,608
  5. Step 5: Solve for x
    x = 315,118,403,589,820,608/639,389,598.87
  6. Step 6: Final answer
    x = 492,842,555.07

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.