Home / 457,812,090.90-686,718,136.35-439,955,673.30

Finding the Fourth Proportional to 457,812,090.90, 686,718,136.35 and 439,955,673.30

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Solution

The fourth proportional to 457,812,090.90, 686,718,136.35 and 439,955,673.30 is: 659,933,509.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,812,090.90 : 686,718,136.35 = 439,955,673.30 : x
  2. Step 2: Convert to fraction form
    457,812,090.90/686,718,136.35 = 439,955,673.30/x
  3. Step 3: Cross multiply
    457,812,090.90x = 686,718,136.35 × 439,955,673.30
  4. Step 4: Simplify right side
    457,812,090.90x = 302,125,540,045,185,472
  5. Step 5: Solve for x
    x = 302,125,540,045,185,472/457,812,090.90
  6. Step 6: Final answer
    x = 659,933,509.95

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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.