Home / 431,142,802.20-646,714,203.30-154,926,342.45

Finding the Fourth Proportional to 431,142,802.20, 646,714,203.30 and 154,926,342.45

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Solution

The fourth proportional to 431,142,802.20, 646,714,203.30 and 154,926,342.45 is: 232,389,513.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,142,802.20 : 646,714,203.30 = 154,926,342.45 : x
  2. Step 2: Convert to fraction form
    431,142,802.20/646,714,203.30 = 154,926,342.45/x
  3. Step 3: Cross multiply
    431,142,802.20x = 646,714,203.30 × 154,926,342.45
  4. Step 4: Simplify right side
    431,142,802.20x = 100,193,066,127,734,704
  5. Step 5: Solve for x
    x = 100,193,066,127,734,704/431,142,802.20
  6. Step 6: Final answer
    x = 232,389,513.68

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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.