Home / 1,289,723,898.39-1,931,750,165.16-1,065,858,116.91

Finding the Fourth Proportional to 1,289,723,898.39, 1,931,750,165.16 and 1,065,858,116.91

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Solution

The fourth proportional to 1,289,723,898.39, 1,931,750,165.16 and 1,065,858,116.91 is: 1,596,443,700.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,723,898.39 : 1,931,750,165.16 = 1,065,858,116.91 : x
  2. Step 2: Convert to fraction form
    1,289,723,898.39/1,931,750,165.16 = 1,065,858,116.91/x
  3. Step 3: Cross multiply
    1,289,723,898.39x = 1,931,750,165.16 × 1,065,858,116.91
  4. Step 4: Simplify right side
    1,289,723,898.39x = 2,058,971,593,378,019,072
  5. Step 5: Solve for x
    x = 2,058,971,593,378,019,072/1,289,723,898.39
  6. Step 6: Final answer
    x = 1,596,443,700.82

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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.