Home / 12,631,821.10-18,921,159.60-10,506,057.10

Finding the Fourth Proportional to 12,631,821.10, 18,921,159.60 and 10,506,057.10

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Solution

The fourth proportional to 12,631,821.10, 18,921,159.60 and 10,506,057.10 is: 15,736,985.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,631,821.10 : 18,921,159.60 = 10,506,057.10 : x
  2. Step 2: Convert to fraction form
    12,631,821.10/18,921,159.60 = 10,506,057.10/x
  3. Step 3: Cross multiply
    12,631,821.10x = 18,921,159.60 × 10,506,057.10
  4. Step 4: Simplify right side
    12,631,821.10x = 198,786,783,155,813.16
  5. Step 5: Solve for x
    x = 198,786,783,155,813.16/12,631,821.10
  6. Step 6: Final answer
    x = 15,736,985.32

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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.