Home / 380,441,743.32-525,009,681.92-231,762,856.64

Finding the Fourth Proportional to 380,441,743.32, 525,009,681.92 and 231,762,856.64

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Solution

The fourth proportional to 380,441,743.32, 525,009,681.92 and 231,762,856.64 is: 319,832,788.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,441,743.32 : 525,009,681.92 = 231,762,856.64 : x
  2. Step 2: Convert to fraction form
    380,441,743.32/525,009,681.92 = 231,762,856.64/x
  3. Step 3: Cross multiply
    380,441,743.32x = 525,009,681.92 × 231,762,856.64
  4. Step 4: Simplify right side
    380,441,743.32x = 121,677,743,645,436,960
  5. Step 5: Solve for x
    x = 121,677,743,645,436,960/380,441,743.32
  6. Step 6: Final answer
    x = 319,832,788.55

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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.