Home / 709,971,317.49-1,065,071,411.51-218,684,358.93

Finding the Fourth Proportional to 709,971,317.49, 1,065,071,411.51 and 218,684,358.93

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Solution

The fourth proportional to 709,971,317.49, 1,065,071,411.51 and 218,684,358.93 is: 328,061,786.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,971,317.49 : 1,065,071,411.51 = 218,684,358.93 : x
  2. Step 2: Convert to fraction form
    709,971,317.49/1,065,071,411.51 = 218,684,358.93/x
  3. Step 3: Cross multiply
    709,971,317.49x = 1,065,071,411.51 × 218,684,358.93
  4. Step 4: Simplify right side
    709,971,317.49x = 232,914,458,839,641,152
  5. Step 5: Solve for x
    x = 232,914,458,839,641,152/709,971,317.49
  6. Step 6: Final answer
    x = 328,061,786.58

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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.