Home / 409,068,534.66-613,688,979.12-132,698,169.34

Finding the Fourth Proportional to 409,068,534.66, 613,688,979.12 and 132,698,169.34

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Solution

The fourth proportional to 409,068,534.66, 613,688,979.12 and 132,698,169.34 is: 199,075,209.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,068,534.66 : 613,688,979.12 = 132,698,169.34 : x
  2. Step 2: Convert to fraction form
    409,068,534.66/613,688,979.12 = 132,698,169.34/x
  3. Step 3: Cross multiply
    409,068,534.66x = 613,688,979.12 × 132,698,169.34
  4. Step 4: Simplify right side
    409,068,534.66x = 81,435,404,072,446,944
  5. Step 5: Solve for x
    x = 81,435,404,072,446,944/409,068,534.66
  6. Step 6: Final answer
    x = 199,075,209.10

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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.