Home / 18,438,904.40-25,446,095.40-10,178,947.12

Finding the Fourth Proportional to 18,438,904.40, 25,446,095.40 and 10,178,947.12

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Solution

The fourth proportional to 18,438,904.40, 25,446,095.40 and 10,178,947.12 is: 14,047,171.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,438,904.40 : 25,446,095.40 = 10,178,947.12 : x
  2. Step 2: Convert to fraction form
    18,438,904.40/25,446,095.40 = 10,178,947.12/x
  3. Step 3: Cross multiply
    18,438,904.40x = 25,446,095.40 × 10,178,947.12
  4. Step 4: Simplify right side
    18,438,904.40x = 259,014,459,487,075.22
  5. Step 5: Solve for x
    x = 259,014,459,487,075.22/18,438,904.40
  6. Step 6: Final answer
    x = 14,047,171.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.