Home / 21,717,487.80-29,956,360.08-13,341,190.32

Finding the Fourth Proportional to 21,717,487.80, 29,956,360.08 and 13,341,190.32

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Solution

The fourth proportional to 21,717,487.80, 29,956,360.08 and 13,341,190.32 is: 18,402,381.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,717,487.80 : 29,956,360.08 = 13,341,190.32 : x
  2. Step 2: Convert to fraction form
    21,717,487.80/29,956,360.08 = 13,341,190.32/x
  3. Step 3: Cross multiply
    21,717,487.80x = 29,956,360.08 × 13,341,190.32
  4. Step 4: Simplify right side
    21,717,487.80x = 399,653,501,121,730.44
  5. Step 5: Solve for x
    x = 399,653,501,121,730.44/21,717,487.80
  6. Step 6: Final answer
    x = 18,402,381.75

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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.