Home / 139,968,148.05-209,952,222.08-68,304,532.05

Finding the Fourth Proportional to 139,968,148.05, 209,952,222.08 and 68,304,532.05

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Solution

The fourth proportional to 139,968,148.05, 209,952,222.08 and 68,304,532.05 is: 102,456,798.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,148.05 : 209,952,222.08 = 68,304,532.05 : x
  2. Step 2: Convert to fraction form
    139,968,148.05/209,952,222.08 = 68,304,532.05/x
  3. Step 3: Cross multiply
    139,968,148.05x = 209,952,222.08 × 68,304,532.05
  4. Step 4: Simplify right side
    139,968,148.05x = 14,340,688,281,690,554
  5. Step 5: Solve for x
    x = 14,340,688,281,690,554/139,968,148.05
  6. Step 6: Final answer
    x = 102,456,798.08

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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.