Home / 1,291,631,103.65-1,935,872,649.01-669,503,350.65

Finding the Fourth Proportional to 1,291,631,103.65, 1,935,872,649.01 and 669,503,350.65

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Solution

The fourth proportional to 1,291,631,103.65, 1,935,872,649.01 and 669,503,350.65 is: 1,003,439,156.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,631,103.65 : 1,935,872,649.01 = 669,503,350.65 : x
  2. Step 2: Convert to fraction form
    1,291,631,103.65/1,935,872,649.01 = 669,503,350.65/x
  3. Step 3: Cross multiply
    1,291,631,103.65x = 1,935,872,649.01 × 669,503,350.65
  4. Step 4: Simplify right side
    1,291,631,103.65x = 1,296,073,224,943,886,336
  5. Step 5: Solve for x
    x = 1,296,073,224,943,886,336/1,291,631,103.65
  6. Step 6: Final answer
    x = 1,003,439,156.34

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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.