Home / 1,238,868,433.38-1,709,673,679.68-674,389,717.79

Finding the Fourth Proportional to 1,238,868,433.38, 1,709,673,679.68 and 674,389,717.79

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Solution

The fourth proportional to 1,238,868,433.38, 1,709,673,679.68 and 674,389,717.79 is: 930,676,994.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,868,433.38 : 1,709,673,679.68 = 674,389,717.79 : x
  2. Step 2: Convert to fraction form
    1,238,868,433.38/1,709,673,679.68 = 674,389,717.79/x
  3. Step 3: Cross multiply
    1,238,868,433.38x = 1,709,673,679.68 × 674,389,717.79
  4. Step 4: Simplify right side
    1,238,868,433.38x = 1,152,986,350,343,837,696
  5. Step 5: Solve for x
    x = 1,152,986,350,343,837,696/1,238,868,433.38
  6. Step 6: Final answer
    x = 930,676,994.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.