Home / 452,457,789.18-678,688,851.35-137,326,555.48

Finding the Fourth Proportional to 452,457,789.18, 678,688,851.35 and 137,326,555.48

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Solution

The fourth proportional to 452,457,789.18, 678,688,851.35 and 137,326,555.48 is: 205,990,491.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,457,789.18 : 678,688,851.35 = 137,326,555.48 : x
  2. Step 2: Convert to fraction form
    452,457,789.18/678,688,851.35 = 137,326,555.48/x
  3. Step 3: Cross multiply
    452,457,789.18x = 678,688,851.35 × 137,326,555.48
  4. Step 4: Simplify right side
    452,457,789.18x = 93,202,002,198,573,248
  5. Step 5: Solve for x
    x = 93,202,002,198,573,248/452,457,789.18
  6. Step 6: Final answer
    x = 205,990,491.11

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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.