Home / 1,010,612,979.72-1,516,064,075.91-311,164,296.66

Finding the Fourth Proportional to 1,010,612,979.72, 1,516,064,075.91 and 311,164,296.66

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Solution

The fourth proportional to 1,010,612,979.72, 1,516,064,075.91 and 311,164,296.66 is: 466,790,968.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010,612,979.72 : 1,516,064,075.91 = 311,164,296.66 : x
  2. Step 2: Convert to fraction form
    1,010,612,979.72/1,516,064,075.91 = 311,164,296.66/x
  3. Step 3: Cross multiply
    1,010,612,979.72x = 1,516,064,075.91 × 311,164,296.66
  4. Step 4: Simplify right side
    1,010,612,979.72x = 471,745,011,872,028,096
  5. Step 5: Solve for x
    x = 471,745,011,872,028,096/1,010,612,979.72
  6. Step 6: Final answer
    x = 466,790,968.79

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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.