Home / 306,617,991.12-423,130,675.22-167,388,752.88

Finding the Fourth Proportional to 306,617,991.12, 423,130,675.22 and 167,388,752.88

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Solution

The fourth proportional to 306,617,991.12, 423,130,675.22 and 167,388,752.88 is: 230,995,303.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,617,991.12 : 423,130,675.22 = 167,388,752.88 : x
  2. Step 2: Convert to fraction form
    306,617,991.12/423,130,675.22 = 167,388,752.88/x
  3. Step 3: Cross multiply
    306,617,991.12x = 423,130,675.22 × 167,388,752.88
  4. Step 4: Simplify right side
    306,617,991.12x = 70,827,316,030,348,120
  5. Step 5: Solve for x
    x = 70,827,316,030,348,120/306,617,991.12
  6. Step 6: Final answer
    x = 230,995,303.87

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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.