Home / 1,391,805,213.54-2,088,521,909.19-519,009,555.30

Finding the Fourth Proportional to 1,391,805,213.54, 2,088,521,909.19 and 519,009,555.30

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Solution

The fourth proportional to 1,391,805,213.54, 2,088,521,909.19 and 519,009,555.30 is: 778,817,909.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,805,213.54 : 2,088,521,909.19 = 519,009,555.30 : x
  2. Step 2: Convert to fraction form
    1,391,805,213.54/2,088,521,909.19 = 519,009,555.30/x
  3. Step 3: Cross multiply
    1,391,805,213.54x = 2,088,521,909.19 × 519,009,555.30
  4. Step 4: Simplify right side
    1,391,805,213.54x = 1,083,962,827,323,008,896
  5. Step 5: Solve for x
    x = 1,083,962,827,323,008,896/1,391,805,213.54
  6. Step 6: Final answer
    x = 778,817,909.85

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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.