Home / 678,149,213,092.79-1,017,422,316,890.50-218,674,642,438.77

Finding the Fourth Proportional to 678,149,213,092.79, 1,017,422,316,890.50 and 218,674,642,438.77

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Solution

The fourth proportional to 678,149,213,092.79, 1,017,422,316,890.50 and 218,674,642,438.77 is: 328,075,970,685.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,149,213,092.79 : 1,017,422,316,890.50 = 218,674,642,438.77 : x
  2. Step 2: Convert to fraction form
    678,149,213,092.79/1,017,422,316,890.50 = 218,674,642,438.77/x
  3. Step 3: Cross multiply
    678,149,213,092.79x = 1,017,422,316,890.50 × 218,674,642,438.77
  4. Step 4: Simplify right side
    678,149,213,092.79x = 222,484,461,355,255,010,951,168
  5. Step 5: Solve for x
    x = 222,484,461,355,255,010,951,168/678,149,213,092.79
  6. Step 6: Final answer
    x = 328,075,970,685.84

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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.