Home / 1,508,138,997.54-2,262,185,792.82-678,506,774.43

Finding the Fourth Proportional to 1,508,138,997.54, 2,262,185,792.82 and 678,506,774.43

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Solution

The fourth proportional to 1,508,138,997.54, 2,262,185,792.82 and 678,506,774.43 is: 1,017,749,947.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,508,138,997.54 : 2,262,185,792.82 = 678,506,774.43 : x
  2. Step 2: Convert to fraction form
    1,508,138,997.54/2,262,185,792.82 = 678,506,774.43/x
  3. Step 3: Cross multiply
    1,508,138,997.54x = 2,262,185,792.82 × 678,506,774.43
  4. Step 4: Simplify right side
    1,508,138,997.54x = 1,534,908,385,447,670,528
  5. Step 5: Solve for x
    x = 1,534,908,385,447,670,528/1,508,138,997.54
  6. Step 6: Final answer
    x = 1,017,749,947.42

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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.