Home / 726,768,015.30-1,090,152,022.95-420,657,999.30

Finding the Fourth Proportional to 726,768,015.30, 1,090,152,022.95 and 420,657,999.30

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Solution

The fourth proportional to 726,768,015.30, 1,090,152,022.95 and 420,657,999.30 is: 630,986,998.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,768,015.30 : 1,090,152,022.95 = 420,657,999.30 : x
  2. Step 2: Convert to fraction form
    726,768,015.30/1,090,152,022.95 = 420,657,999.30/x
  3. Step 3: Cross multiply
    726,768,015.30x = 1,090,152,022.95 × 420,657,999.30
  4. Step 4: Simplify right side
    726,768,015.30x = 458,581,168,906,994,688
  5. Step 5: Solve for x
    x = 458,581,168,906,994,688/726,768,015.30
  6. Step 6: Final answer
    x = 630,986,998.95

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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.