Home / 678,149,213,095.80-1,017,422,316,895.10-218,674,642,441.76

Finding the Fourth Proportional to 678,149,213,095.80, 1,017,422,316,895.10 and 218,674,642,441.76

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Solution

The fourth proportional to 678,149,213,095.80, 1,017,422,316,895.10 and 218,674,642,441.76 is: 328,075,970,690.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,149,213,095.80 : 1,017,422,316,895.10 = 218,674,642,441.76 : x
  2. Step 2: Convert to fraction form
    678,149,213,095.80/1,017,422,316,895.10 = 218,674,642,441.76/x
  3. Step 3: Cross multiply
    678,149,213,095.80x = 1,017,422,316,895.10 × 218,674,642,441.76
  4. Step 4: Simplify right side
    678,149,213,095.80x = 222,484,461,359,303,017,627,648
  5. Step 5: Solve for x
    x = 222,484,461,359,303,017,627,648/678,149,213,095.80
  6. Step 6: Final answer
    x = 328,075,970,690.35

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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.