Home / 115,676,918.42-172,313,096.05-109,411,478.14

Finding the Fourth Proportional to 115,676,918.42, 172,313,096.05 and 109,411,478.14

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Solution

The fourth proportional to 115,676,918.42, 172,313,096.05 and 109,411,478.14 is: 162,980,055.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,676,918.42 : 172,313,096.05 = 109,411,478.14 : x
  2. Step 2: Convert to fraction form
    115,676,918.42/172,313,096.05 = 109,411,478.14/x
  3. Step 3: Cross multiply
    115,676,918.42x = 172,313,096.05 × 109,411,478.14
  4. Step 4: Simplify right side
    115,676,918.42x = 18,853,030,541,005,984
  5. Step 5: Solve for x
    x = 18,853,030,541,005,984/115,676,918.42
  6. Step 6: Final answer
    x = 162,980,055.13

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.