Home / 420,053,539.60-630,080,309.40-362,610,672.40

Finding the Fourth Proportional to 420,053,539.60, 630,080,309.40 and 362,610,672.40

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Solution

The fourth proportional to 420,053,539.60, 630,080,309.40 and 362,610,672.40 is: 543,916,008.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,053,539.60 : 630,080,309.40 = 362,610,672.40 : x
  2. Step 2: Convert to fraction form
    420,053,539.60/630,080,309.40 = 362,610,672.40/x
  3. Step 3: Cross multiply
    420,053,539.60x = 630,080,309.40 × 362,610,672.40
  4. Step 4: Simplify right side
    420,053,539.60x = 228,473,844,657,534,016
  5. Step 5: Solve for x
    x = 228,473,844,657,534,016/420,053,539.60
  6. Step 6: Final answer
    x = 543,916,008.60

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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.