Home / 139,968,208.90-209,952,313.35-42,923,145.70

Finding the Fourth Proportional to 139,968,208.90, 209,952,313.35 and 42,923,145.70

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Solution

The fourth proportional to 139,968,208.90, 209,952,313.35 and 42,923,145.70 is: 64,384,718.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,208.90 : 209,952,313.35 = 42,923,145.70 : x
  2. Step 2: Convert to fraction form
    139,968,208.90/209,952,313.35 = 42,923,145.70/x
  3. Step 3: Cross multiply
    139,968,208.90x = 209,952,313.35 × 42,923,145.70
  4. Step 4: Simplify right side
    139,968,208.90x = 9,011,813,735,974,106
  5. Step 5: Solve for x
    x = 9,011,813,735,974,106/139,968,208.90
  6. Step 6: Final answer
    x = 64,384,718.55

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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.