Home / 21,450,064.80-32,238,082.80-18,678,698.40

Finding the Fourth Proportional to 21,450,064.80, 32,238,082.80 and 18,678,698.40

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Solution

The fourth proportional to 21,450,064.80, 32,238,082.80 and 18,678,698.40 is: 28,072,895.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,450,064.80 : 32,238,082.80 = 18,678,698.40 : x
  2. Step 2: Convert to fraction form
    21,450,064.80/32,238,082.80 = 18,678,698.40/x
  3. Step 3: Cross multiply
    21,450,064.80x = 32,238,082.80 × 18,678,698.40
  4. Step 4: Simplify right side
    21,450,064.80x = 602,165,425,615,427.50
  5. Step 5: Solve for x
    x = 602,165,425,615,427.50/21,450,064.80
  6. Step 6: Final answer
    x = 28,072,895.41

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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.