Home / 262,451,315.20-393,676,972.80-249,312,985.60

Finding the Fourth Proportional to 262,451,315.20, 393,676,972.80 and 249,312,985.60

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Solution

The fourth proportional to 262,451,315.20, 393,676,972.80 and 249,312,985.60 is: 373,969,478.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,451,315.20 : 393,676,972.80 = 249,312,985.60 : x
  2. Step 2: Convert to fraction form
    262,451,315.20/393,676,972.80 = 249,312,985.60/x
  3. Step 3: Cross multiply
    262,451,315.20x = 393,676,972.80 × 249,312,985.60
  4. Step 4: Simplify right side
    262,451,315.20x = 98,148,781,450,738,000
  5. Step 5: Solve for x
    x = 98,148,781,450,738,000/262,451,315.20
  6. Step 6: Final answer
    x = 373,969,478.40

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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.