Home / 126,609,828.69-190,132,080.54-77,712,810.33

Finding the Fourth Proportional to 126,609,828.69, 190,132,080.54 and 77,712,810.33

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Solution

The fourth proportional to 126,609,828.69, 190,132,080.54 and 77,712,810.33 is: 116,702,616.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,609,828.69 : 190,132,080.54 = 77,712,810.33 : x
  2. Step 2: Convert to fraction form
    126,609,828.69/190,132,080.54 = 77,712,810.33/x
  3. Step 3: Cross multiply
    126,609,828.69x = 190,132,080.54 × 77,712,810.33
  4. Step 4: Simplify right side
    126,609,828.69x = 14,775,698,312,653,302
  5. Step 5: Solve for x
    x = 14,775,698,312,653,302/126,609,828.69
  6. Step 6: Final answer
    x = 116,702,616.74

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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.