Home / 1,048,789,609.20-1,574,976,004.20-686,888,348.40

Finding the Fourth Proportional to 1,048,789,609.20, 1,574,976,004.20 and 686,888,348.40

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Solution

The fourth proportional to 1,048,789,609.20, 1,574,976,004.20 and 686,888,348.40 is: 1,031,505,896.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,048,789,609.20 : 1,574,976,004.20 = 686,888,348.40 : x
  2. Step 2: Convert to fraction form
    1,048,789,609.20/1,574,976,004.20 = 686,888,348.40/x
  3. Step 3: Cross multiply
    1,048,789,609.20x = 1,574,976,004.20 × 686,888,348.40
  4. Step 4: Simplify right side
    1,048,789,609.20x = 1,081,832,666,294,569,472
  5. Step 5: Solve for x
    x = 1,081,832,666,294,569,472/1,048,789,609.20
  6. Step 6: Final answer
    x = 1,031,505,896.71

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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.