Home / 491,646,065.20-737,469,097.80-438,076,812.40

Finding the Fourth Proportional to 491,646,065.20, 737,469,097.80 and 438,076,812.40

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Solution

The fourth proportional to 491,646,065.20, 737,469,097.80 and 438,076,812.40 is: 657,115,218.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,646,065.20 : 737,469,097.80 = 438,076,812.40 : x
  2. Step 2: Convert to fraction form
    491,646,065.20/737,469,097.80 = 438,076,812.40/x
  3. Step 3: Cross multiply
    491,646,065.20x = 737,469,097.80 × 438,076,812.40
  4. Step 4: Simplify right side
    491,646,065.20x = 323,068,111,607,727,808
  5. Step 5: Solve for x
    x = 323,068,111,607,727,808/491,646,065.20
  6. Step 6: Final answer
    x = 657,115,218.60

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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.