Home / 1,866,249,619.80-2,799,374,429.70-639,010,195.80

Finding the Fourth Proportional to 1,866,249,619.80, 2,799,374,429.70 and 639,010,195.80

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Solution

The fourth proportional to 1,866,249,619.80, 2,799,374,429.70 and 639,010,195.80 is: 958,515,293.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,866,249,619.80 : 2,799,374,429.70 = 639,010,195.80 : x
  2. Step 2: Convert to fraction form
    1,866,249,619.80/2,799,374,429.70 = 639,010,195.80/x
  3. Step 3: Cross multiply
    1,866,249,619.80x = 2,799,374,429.70 × 639,010,195.80
  4. Step 4: Simplify right side
    1,866,249,619.80x = 1,788,828,802,440,110,080
  5. Step 5: Solve for x
    x = 1,788,828,802,440,110,080/1,866,249,619.80
  6. Step 6: Final answer
    x = 958,515,293.70

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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.