Home / 1,391,805,188.98-2,088,521,872.38-519,009,530.74

Finding the Fourth Proportional to 1,391,805,188.98, 2,088,521,872.38 and 519,009,530.74

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Solution

The fourth proportional to 1,391,805,188.98, 2,088,521,872.38 and 519,009,530.74 is: 778,817,873.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,805,188.98 : 2,088,521,872.38 = 519,009,530.74 : x
  2. Step 2: Convert to fraction form
    1,391,805,188.98/2,088,521,872.38 = 519,009,530.74/x
  3. Step 3: Cross multiply
    1,391,805,188.98x = 2,088,521,872.38 × 519,009,530.74
  4. Step 4: Simplify right side
    1,391,805,188.98x = 1,083,962,756,918,948,736
  5. Step 5: Solve for x
    x = 1,083,962,756,918,948,736/1,391,805,188.98
  6. Step 6: Final answer
    x = 778,817,873.01

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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.