Home / 910,289,294.40-1,256,199,227.87-492,601,579.70

Finding the Fourth Proportional to 910,289,294.40, 1,256,199,227.87 and 492,601,579.70

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Solution

The fourth proportional to 910,289,294.40, 1,256,199,227.87 and 492,601,579.70 is: 679,790,180.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,289,294.40 : 1,256,199,227.87 = 492,601,579.70 : x
  2. Step 2: Convert to fraction form
    910,289,294.40/1,256,199,227.87 = 492,601,579.70/x
  3. Step 3: Cross multiply
    910,289,294.40x = 1,256,199,227.87 × 492,601,579.70
  4. Step 4: Simplify right side
    910,289,294.40x = 618,805,724,057,938,304
  5. Step 5: Solve for x
    x = 618,805,724,057,938,304/910,289,294.40
  6. Step 6: Final answer
    x = 679,790,180.84

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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.