Home / 129,290,506.07-178,424,666.33-70,556,954.31

Finding the Fourth Proportional to 129,290,506.07, 178,424,666.33 and 70,556,954.31

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Solution

The fourth proportional to 129,290,506.07, 178,424,666.33 and 70,556,954.31 is: 97,370,653.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,290,506.07 : 178,424,666.33 = 70,556,954.31 : x
  2. Step 2: Convert to fraction form
    129,290,506.07/178,424,666.33 = 70,556,954.31/x
  3. Step 3: Cross multiply
    129,290,506.07x = 178,424,666.33 × 70,556,954.31
  4. Step 4: Simplify right side
    129,290,506.07x = 12,589,101,029,670,020
  5. Step 5: Solve for x
    x = 12,589,101,029,670,020/129,290,506.07
  6. Step 6: Final answer
    x = 97,370,653.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.