Home / 42,249,939.22-63,367,417.43-19,215,478.36

Finding the Fourth Proportional to 42,249,939.22, 63,367,417.43 and 19,215,478.36

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Solution

The fourth proportional to 42,249,939.22, 63,367,417.43 and 19,215,478.36 is: 28,819,810.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,249,939.22 : 63,367,417.43 = 19,215,478.36 : x
  2. Step 2: Convert to fraction form
    42,249,939.22/63,367,417.43 = 19,215,478.36/x
  3. Step 3: Cross multiply
    42,249,939.22x = 63,367,417.43 × 19,215,478.36
  4. Step 4: Simplify right side
    42,249,939.22x = 1,217,635,238,410,441.75
  5. Step 5: Solve for x
    x = 1,217,635,238,410,441.75/42,249,939.22
  6. Step 6: Final answer
    x = 28,819,810.42

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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.