Home / 403,704,971.46-557,113,084.74-218,065,988.97

Finding the Fourth Proportional to 403,704,971.46, 557,113,084.74 and 218,065,988.97

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Solution

The fourth proportional to 403,704,971.46, 557,113,084.74 and 218,065,988.97 is: 300,931,185.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,704,971.46 : 557,113,084.74 = 218,065,988.97 : x
  2. Step 2: Convert to fraction form
    403,704,971.46/557,113,084.74 = 218,065,988.97/x
  3. Step 3: Cross multiply
    403,704,971.46x = 557,113,084.74 × 218,065,988.97
  4. Step 4: Simplify right side
    403,704,971.46x = 121,487,415,791,955,520
  5. Step 5: Solve for x
    x = 121,487,415,791,955,520/403,704,971.46
  6. Step 6: Final answer
    x = 300,931,185.84

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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.