Home / 854,109,334.84-1,178,759,655.18-492,015,790.84

Finding the Fourth Proportional to 854,109,334.84, 1,178,759,655.18 and 492,015,790.84

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Solution

The fourth proportional to 854,109,334.84, 1,178,759,655.18 and 492,015,790.84 is: 679,032,929.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,109,334.84 : 1,178,759,655.18 = 492,015,790.84 : x
  2. Step 2: Convert to fraction form
    854,109,334.84/1,178,759,655.18 = 492,015,790.84/x
  3. Step 3: Cross multiply
    854,109,334.84x = 1,178,759,655.18 × 492,015,790.84
  4. Step 4: Simplify right side
    854,109,334.84x = 579,968,363,953,673,344
  5. Step 5: Solve for x
    x = 579,968,363,953,673,344/854,109,334.84
  6. Step 6: Final answer
    x = 679,032,929.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.