Home / 10,971,038.20-16,456,557.30-7,387,857.40

Finding the Fourth Proportional to 10,971,038.20, 16,456,557.30 and 7,387,857.40

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Solution

The fourth proportional to 10,971,038.20, 16,456,557.30 and 7,387,857.40 is: 11,081,786.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,971,038.20 : 16,456,557.30 = 7,387,857.40 : x
  2. Step 2: Convert to fraction form
    10,971,038.20/16,456,557.30 = 7,387,857.40/x
  3. Step 3: Cross multiply
    10,971,038.20x = 16,456,557.30 × 7,387,857.40
  4. Step 4: Simplify right side
    10,971,038.20x = 121,578,698,627,329.03
  5. Step 5: Solve for x
    x = 121,578,698,627,329.03/10,971,038.20
  6. Step 6: Final answer
    x = 11,081,786.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.