Home / 10,431,029.80-15,646,544.70-8,938,037.80

Finding the Fourth Proportional to 10,431,029.80, 15,646,544.70 and 8,938,037.80

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Solution

The fourth proportional to 10,431,029.80, 15,646,544.70 and 8,938,037.80 is: 13,407,056.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,431,029.80 : 15,646,544.70 = 8,938,037.80 : x
  2. Step 2: Convert to fraction form
    10,431,029.80/15,646,544.70 = 8,938,037.80/x
  3. Step 3: Cross multiply
    10,431,029.80x = 15,646,544.70 × 8,938,037.80
  4. Step 4: Simplify right side
    10,431,029.80x = 139,849,407,967,989.67
  5. Step 5: Solve for x
    x = 139,849,407,967,989.67/10,431,029.80
  6. Step 6: Final answer
    x = 13,407,056.70

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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.