Home / 485,441,261.04-670,091,116.84-318,188,300.63

Finding the Fourth Proportional to 485,441,261.04, 670,091,116.84 and 318,188,300.63

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Solution

The fourth proportional to 485,441,261.04, 670,091,116.84 and 318,188,300.63 is: 439,219,264.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,441,261.04 : 670,091,116.84 = 318,188,300.63 : x
  2. Step 2: Convert to fraction form
    485,441,261.04/670,091,116.84 = 318,188,300.63/x
  3. Step 3: Cross multiply
    485,441,261.04x = 670,091,116.84 × 318,188,300.63
  4. Step 4: Simplify right side
    485,441,261.04x = 213,215,153,730,432,448
  5. Step 5: Solve for x
    x = 213,215,153,730,432,448/485,441,261.04
  6. Step 6: Final answer
    x = 439,219,264.70

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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.