Home / 407,748,985.22-562,675,448.13-238,218,936.50

Finding the Fourth Proportional to 407,748,985.22, 562,675,448.13 and 238,218,936.50

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Solution

The fourth proportional to 407,748,985.22, 562,675,448.13 and 238,218,936.50 is: 328,731,527.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,748,985.22 : 562,675,448.13 = 238,218,936.50 : x
  2. Step 2: Convert to fraction form
    407,748,985.22/562,675,448.13 = 238,218,936.50/x
  3. Step 3: Cross multiply
    407,748,985.22x = 562,675,448.13 × 238,218,936.50
  4. Step 4: Simplify right side
    407,748,985.22x = 134,039,946,848,189,520
  5. Step 5: Solve for x
    x = 134,039,946,848,189,520/407,748,985.22
  6. Step 6: Final answer
    x = 328,731,527.75

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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.