Home / 21,403,345.82-29,536,528.57-12,708,675.81

Finding the Fourth Proportional to 21,403,345.82, 29,536,528.57 and 12,708,675.81

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Solution

The fourth proportional to 21,403,345.82, 29,536,528.57 and 12,708,675.81 is: 17,537,919.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,403,345.82 : 29,536,528.57 = 12,708,675.81 : x
  2. Step 2: Convert to fraction form
    21,403,345.82/29,536,528.57 = 12,708,675.81/x
  3. Step 3: Cross multiply
    21,403,345.82x = 29,536,528.57 × 12,708,675.81
  4. Step 4: Simplify right side
    21,403,345.82x = 375,370,166,117,161.19
  5. Step 5: Solve for x
    x = 375,370,166,117,161.19/21,403,345.82
  6. Step 6: Final answer
    x = 17,537,919.98

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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.