Home / 667,307,711.70-1,000,961,567.55-621,958,079.70

Finding the Fourth Proportional to 667,307,711.70, 1,000,961,567.55 and 621,958,079.70

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Solution

The fourth proportional to 667,307,711.70, 1,000,961,567.55 and 621,958,079.70 is: 932,937,119.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,307,711.70 : 1,000,961,567.55 = 621,958,079.70 : x
  2. Step 2: Convert to fraction form
    667,307,711.70/1,000,961,567.55 = 621,958,079.70/x
  3. Step 3: Cross multiply
    667,307,711.70x = 1,000,961,567.55 × 621,958,079.70
  4. Step 4: Simplify right side
    667,307,711.70x = 622,556,134,406,899,840
  5. Step 5: Solve for x
    x = 622,556,134,406,899,840/667,307,711.70
  6. Step 6: Final answer
    x = 932,937,119.55

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1.5x scale

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.