Home / 1,980,218,179,840-2,970,323,562,073.30-620,478,986,250.72

Finding the Fourth Proportional to 1,980,218,179,840, 2,970,323,562,073.30 and 620,478,986,250.72

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Solution

The fourth proportional to 1,980,218,179,840, 2,970,323,562,073.30 and 620,478,986,250.72 is: 930,717,317,614.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,980,218,179,840 : 2,970,323,562,073.30 = 620,478,986,250.72 : x
  2. Step 2: Convert to fraction form
    1,980,218,179,840/2,970,323,562,073.30 = 620,478,986,250.72/x
  3. Step 3: Cross multiply
    1,980,218,179,840x = 2,970,323,562,073.30 × 620,478,986,250.72
  4. Step 4: Simplify right side
    1,980,218,179,840x = 1,843,023,352,631,868,528,787,456
  5. Step 5: Solve for x
    x = 1,843,023,352,631,868,528,787,456/1,980,218,179,840
  6. Step 6: Final answer
    x = 930,717,317,614.36

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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.