Home / 1,289,727,196.80-1,931,755,109.84-1,065,861,415.36

Finding the Fourth Proportional to 1,289,727,196.80, 1,931,755,109.84 and 1,065,861,415.36

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Solution

The fourth proportional to 1,289,727,196.80, 1,931,755,109.84 and 1,065,861,415.36 is: 1,596,448,644.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,727,196.80 : 1,931,755,109.84 = 1,065,861,415.36 : x
  2. Step 2: Convert to fraction form
    1,289,727,196.80/1,931,755,109.84 = 1,065,861,415.36/x
  3. Step 3: Cross multiply
    1,289,727,196.80x = 1,931,755,109.84 × 1,065,861,415.36
  4. Step 4: Simplify right side
    1,289,727,196.80x = 2,058,983,235,502,974,720
  5. Step 5: Solve for x
    x = 2,058,983,235,502,974,720/1,289,727,196.80
  6. Step 6: Final answer
    x = 1,596,448,644.81

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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.