Home / 12,816,466.80-19,201,372.20-10,138,412.40

Finding the Fourth Proportional to 12,816,466.80, 19,201,372.20 and 10,138,412.40

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Solution

The fourth proportional to 12,816,466.80, 19,201,372.20 and 10,138,412.40 is: 15,189,165.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,816,466.80 : 19,201,372.20 = 10,138,412.40 : x
  2. Step 2: Convert to fraction form
    12,816,466.80/19,201,372.20 = 10,138,412.40/x
  3. Step 3: Cross multiply
    12,816,466.80x = 19,201,372.20 × 10,138,412.40
  4. Step 4: Simplify right side
    12,816,466.80x = 194,671,430,009,495.28
  5. Step 5: Solve for x
    x = 194,671,430,009,495.28/12,816,466.80
  6. Step 6: Final answer
    x = 15,189,165.08

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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.