Home / 306,617,995.13-423,130,680.72-167,388,756.89

Finding the Fourth Proportional to 306,617,995.13, 423,130,680.72 and 167,388,756.89

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Solution

The fourth proportional to 306,617,995.13, 423,130,680.72 and 167,388,756.89 is: 230,995,309.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,617,995.13 : 423,130,680.72 = 167,388,756.89 : x
  2. Step 2: Convert to fraction form
    306,617,995.13/423,130,680.72 = 167,388,756.89/x
  3. Step 3: Cross multiply
    306,617,995.13x = 423,130,680.72 × 167,388,756.89
  4. Step 4: Simplify right side
    306,617,995.13x = 70,827,318,645,624,640
  5. Step 5: Solve for x
    x = 70,827,318,645,624,640/306,617,995.13
  6. Step 6: Final answer
    x = 230,995,309.38

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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.