Home / 758,142,958.28-1,137,283,838.22-212,880,818.12

Finding the Fourth Proportional to 758,142,958.28, 1,137,283,838.22 and 212,880,818.12

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Solution

The fourth proportional to 758,142,958.28, 1,137,283,838.22 and 212,880,818.12 is: 319,340,714.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,142,958.28 : 1,137,283,838.22 = 212,880,818.12 : x
  2. Step 2: Convert to fraction form
    758,142,958.28/1,137,283,838.22 = 212,880,818.12/x
  3. Step 3: Cross multiply
    758,142,958.28x = 1,137,283,838.22 × 212,880,818.12
  4. Step 4: Simplify right side
    758,142,958.28x = 242,105,913,914,927,328
  5. Step 5: Solve for x
    x = 242,105,913,914,927,328/758,142,958.28
  6. Step 6: Final answer
    x = 319,340,714.40

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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.