Home / 129,290,290.46-178,424,369.07-70,556,738.93

Finding the Fourth Proportional to 129,290,290.46, 178,424,369.07 and 70,556,738.93

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Solution

The fourth proportional to 129,290,290.46, 178,424,369.07 and 70,556,738.93 is: 97,370,356.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,290,290.46 : 178,424,369.07 = 70,556,738.93 : x
  2. Step 2: Convert to fraction form
    129,290,290.46/178,424,369.07 = 70,556,738.93/x
  3. Step 3: Cross multiply
    129,290,290.46x = 178,424,369.07 × 70,556,738.93
  4. Step 4: Simplify right side
    129,290,290.46x = 12,589,041,626,329,834
  5. Step 5: Solve for x
    x = 12,589,041,626,329,834/129,290,290.46
  6. Step 6: Final answer
    x = 97,370,356.13

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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.