Home / 21,162,207.16-29,206,547.34-12,461,189.40

Finding the Fourth Proportional to 21,162,207.16, 29,206,547.34 and 12,461,189.40

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Solution

The fourth proportional to 21,162,207.16, 29,206,547.34 and 12,461,189.40 is: 17,198,032.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,162,207.16 : 29,206,547.34 = 12,461,189.40 : x
  2. Step 2: Convert to fraction form
    21,162,207.16/29,206,547.34 = 12,461,189.40/x
  3. Step 3: Cross multiply
    21,162,207.16x = 29,206,547.34 × 12,461,189.40
  4. Step 4: Simplify right side
    21,162,207.16x = 363,948,318,123,806.19
  5. Step 5: Solve for x
    x = 363,948,318,123,806.19/21,162,207.16
  6. Step 6: Final answer
    x = 17,198,032.10

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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.