Home / 13,507,904.88-18,640,779.21-7,312,792.82

Finding the Fourth Proportional to 13,507,904.88, 18,640,779.21 and 7,312,792.82

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Solution

The fourth proportional to 13,507,904.88, 18,640,779.21 and 7,312,792.82 is: 10,091,583.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,507,904.88 : 18,640,779.21 = 7,312,792.82 : x
  2. Step 2: Convert to fraction form
    13,507,904.88/18,640,779.21 = 7,312,792.82/x
  3. Step 3: Cross multiply
    13,507,904.88x = 18,640,779.21 × 7,312,792.82
  4. Step 4: Simplify right side
    13,507,904.88x = 136,316,156,272,889.39
  5. Step 5: Solve for x
    x = 136,316,156,272,889.39/13,507,904.88
  6. Step 6: Final answer
    x = 10,091,583.96

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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.