Home / 431,212,643.10-646,818,964.65-293,463,135.90

Finding the Fourth Proportional to 431,212,643.10, 646,818,964.65 and 293,463,135.90

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Solution

The fourth proportional to 431,212,643.10, 646,818,964.65 and 293,463,135.90 is: 440,194,703.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,212,643.10 : 646,818,964.65 = 293,463,135.90 : x
  2. Step 2: Convert to fraction form
    431,212,643.10/646,818,964.65 = 293,463,135.90/x
  3. Step 3: Cross multiply
    431,212,643.10x = 646,818,964.65 × 293,463,135.90
  4. Step 4: Simplify right side
    431,212,643.10x = 189,817,521,725,780,224
  5. Step 5: Solve for x
    x = 189,817,521,725,780,224/431,212,643.10
  6. Step 6: Final answer
    x = 440,194,703.85

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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.