Home / 256,681,827.84-384,995,447.28-72,444,748.80

Finding the Fourth Proportional to 256,681,827.84, 384,995,447.28 and 72,444,748.80

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Solution

The fourth proportional to 256,681,827.84, 384,995,447.28 and 72,444,748.80 is: 108,659,419.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,681,827.84 : 384,995,447.28 = 72,444,748.80 : x
  2. Step 2: Convert to fraction form
    256,681,827.84/384,995,447.28 = 72,444,748.80/x
  3. Step 3: Cross multiply
    256,681,827.84x = 384,995,447.28 × 72,444,748.80
  4. Step 4: Simplify right side
    256,681,827.84x = 27,890,898,467,343,240
  5. Step 5: Solve for x
    x = 27,890,898,467,343,240/256,681,827.84
  6. Step 6: Final answer
    x = 108,659,419.73

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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.