Home / 2,139,569,673.80-3,209,354,510.70-915,129,609.80

Finding the Fourth Proportional to 2,139,569,673.80, 3,209,354,510.70 and 915,129,609.80

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Solution

The fourth proportional to 2,139,569,673.80, 3,209,354,510.70 and 915,129,609.80 is: 1,372,694,414.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,139,569,673.80 : 3,209,354,510.70 = 915,129,609.80 : x
  2. Step 2: Convert to fraction form
    2,139,569,673.80/3,209,354,510.70 = 915,129,609.80/x
  3. Step 3: Cross multiply
    2,139,569,673.80x = 3,209,354,510.70 × 915,129,609.80
  4. Step 4: Simplify right side
    2,139,569,673.80x = 2,936,975,341,086,760,448
  5. Step 5: Solve for x
    x = 2,936,975,341,086,760,448/2,139,569,673.80
  6. Step 6: Final answer
    x = 1,372,694,414.70

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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.