Home / 139,968,139.90-209,952,209.85-105,955,915.90

Finding the Fourth Proportional to 139,968,139.90, 209,952,209.85 and 105,955,915.90

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Solution

The fourth proportional to 139,968,139.90, 209,952,209.85 and 105,955,915.90 is: 158,933,873.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,139.90 : 209,952,209.85 = 105,955,915.90 : x
  2. Step 2: Convert to fraction form
    139,968,139.90/209,952,209.85 = 105,955,915.90/x
  3. Step 3: Cross multiply
    139,968,139.90x = 209,952,209.85 × 105,955,915.90
  4. Step 4: Simplify right side
    139,968,139.90x = 22,245,678,689,885,752
  5. Step 5: Solve for x
    x = 22,245,678,689,885,752/139,968,139.90
  6. Step 6: Final answer
    x = 158,933,873.85

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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.