Home / 142,661,743.17-213,925,155.53-55,264,193.07

Finding the Fourth Proportional to 142,661,743.17, 213,925,155.53 and 55,264,193.07

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Solution

The fourth proportional to 142,661,743.17, 213,925,155.53 and 55,264,193.07 is: 82,870,157.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,661,743.17 : 213,925,155.53 = 55,264,193.07 : x
  2. Step 2: Convert to fraction form
    142,661,743.17/213,925,155.53 = 55,264,193.07/x
  3. Step 3: Cross multiply
    142,661,743.17x = 213,925,155.53 × 55,264,193.07
  4. Step 4: Simplify right side
    142,661,743.17x = 11,822,401,097,463,378
  5. Step 5: Solve for x
    x = 11,822,401,097,463,378/142,661,743.17
  6. Step 6: Final answer
    x = 82,870,157.30

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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.