Home / 15,333,665.40-21,167,259.66-9,903,805.56

Finding the Fourth Proportional to 15,333,665.40, 21,167,259.66 and 9,903,805.56

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Solution

The fourth proportional to 15,333,665.40, 21,167,259.66 and 9,903,805.56 is: 13,671,644.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,333,665.40 : 21,167,259.66 = 9,903,805.56 : x
  2. Step 2: Convert to fraction form
    15,333,665.40/21,167,259.66 = 9,903,805.56/x
  3. Step 3: Cross multiply
    15,333,665.40x = 21,167,259.66 × 9,903,805.56
  4. Step 4: Simplify right side
    15,333,665.40x = 209,636,423,910,671.72
  5. Step 5: Solve for x
    x = 209,636,423,910,671.72/15,333,665.40
  6. Step 6: Final answer
    x = 13,671,644.61

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1.5x scale

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.