Home / 28,018,112.40-42,037,666.20-10,991,005.20

Finding the Fourth Proportional to 28,018,112.40, 42,037,666.20 and 10,991,005.20

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Solution

The fourth proportional to 28,018,112.40, 42,037,666.20 and 10,991,005.20 is: 16,490,625.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,018,112.40 : 42,037,666.20 = 10,991,005.20 : x
  2. Step 2: Convert to fraction form
    28,018,112.40/42,037,666.20 = 10,991,005.20/x
  3. Step 3: Cross multiply
    28,018,112.40x = 42,037,666.20 × 10,991,005.20
  4. Step 4: Simplify right side
    28,018,112.40x = 462,036,207,800,064.25
  5. Step 5: Solve for x
    x = 462,036,207,800,064.25/28,018,112.40
  6. Step 6: Final answer
    x = 16,490,625.82

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1.5x scale

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.