Home / 378,748,988.32-522,643,835.28-232,051,326.88

Finding the Fourth Proportional to 378,748,988.32, 522,643,835.28 and 232,051,326.88

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Solution

The fourth proportional to 378,748,988.32, 522,643,835.28 and 232,051,326.88 is: 320,212,592.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,748,988.32 : 522,643,835.28 = 232,051,326.88 : x
  2. Step 2: Convert to fraction form
    378,748,988.32/522,643,835.28 = 232,051,326.88/x
  3. Step 3: Cross multiply
    378,748,988.32x = 522,643,835.28 × 232,051,326.88
  4. Step 4: Simplify right side
    378,748,988.32x = 121,280,195,462,376,144
  5. Step 5: Solve for x
    x = 121,280,195,462,376,144/378,748,988.32
  6. Step 6: Final answer
    x = 320,212,592.51

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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.