Home / 13,721,376.42-18,936,361.59-7,609,804.98

Finding the Fourth Proportional to 13,721,376.42, 18,936,361.59 and 7,609,804.98

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Solution

The fourth proportional to 13,721,376.42, 18,936,361.59 and 7,609,804.98 is: 10,502,009.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,721,376.42 : 18,936,361.59 = 7,609,804.98 : x
  2. Step 2: Convert to fraction form
    13,721,376.42/18,936,361.59 = 7,609,804.98/x
  3. Step 3: Cross multiply
    13,721,376.42x = 18,936,361.59 × 7,609,804.98
  4. Step 4: Simplify right side
    13,721,376.42x = 144,102,018,730,662.72
  5. Step 5: Solve for x
    x = 144,102,018,730,662.72/13,721,376.42
  6. Step 6: Final answer
    x = 10,502,009.01

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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.