Home / 10,971,037.20-16,456,555.80-7,387,856.40

Finding the Fourth Proportional to 10,971,037.20, 16,456,555.80 and 7,387,856.40

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Solution

The fourth proportional to 10,971,037.20, 16,456,555.80 and 7,387,856.40 is: 11,081,784.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,971,037.20 : 16,456,555.80 = 7,387,856.40 : x
  2. Step 2: Convert to fraction form
    10,971,037.20/16,456,555.80 = 7,387,856.40/x
  3. Step 3: Cross multiply
    10,971,037.20x = 16,456,555.80 × 7,387,856.40
  4. Step 4: Simplify right side
    10,971,037.20x = 121,578,671,088,987.12
  5. Step 5: Solve for x
    x = 121,578,671,088,987.12/10,971,037.20
  6. Step 6: Final answer
    x = 11,081,784.60

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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.