Home / 15,461,686.15-21,339,008.96-8,935,368.93

Finding the Fourth Proportional to 15,461,686.15, 21,339,008.96 and 8,935,368.93

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Solution

The fourth proportional to 15,461,686.15, 21,339,008.96 and 8,935,368.93 is: 12,331,896.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,461,686.15 : 21,339,008.96 = 8,935,368.93 : x
  2. Step 2: Convert to fraction form
    15,461,686.15/21,339,008.96 = 8,935,368.93/x
  3. Step 3: Cross multiply
    15,461,686.15x = 21,339,008.96 × 8,935,368.93
  4. Step 4: Simplify right side
    15,461,686.15x = 190,671,917,613,498.75
  5. Step 5: Solve for x
    x = 190,671,917,613,498.75/15,461,686.15
  6. Step 6: Final answer
    x = 12,331,896.78

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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.