Home / 678,149,213,095.30-1,017,422,316,894.30-218,674,642,441.26

Finding the Fourth Proportional to 678,149,213,095.30, 1,017,422,316,894.30 and 218,674,642,441.26

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Solution

The fourth proportional to 678,149,213,095.30, 1,017,422,316,894.30 and 218,674,642,441.26 is: 328,075,970,689.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,149,213,095.30 : 1,017,422,316,894.30 = 218,674,642,441.26 : x
  2. Step 2: Convert to fraction form
    678,149,213,095.30/1,017,422,316,894.30 = 218,674,642,441.26/x
  3. Step 3: Cross multiply
    678,149,213,095.30x = 1,017,422,316,894.30 × 218,674,642,441.26
  4. Step 4: Simplify right side
    678,149,213,095.30x = 222,484,461,358,619,413,184,512
  5. Step 5: Solve for x
    x = 222,484,461,358,619,413,184,512/678,149,213,095.30
  6. Step 6: Final answer
    x = 328,075,970,689.59

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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.