Home / 13,249,849.80-19,886,438.70-7,851,750.60

Finding the Fourth Proportional to 13,249,849.80, 19,886,438.70 and 7,851,750.60

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Solution

The fourth proportional to 13,249,849.80, 19,886,438.70 and 7,851,750.60 is: 11,784,537.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,249,849.80 : 19,886,438.70 = 7,851,750.60 : x
  2. Step 2: Convert to fraction form
    13,249,849.80/19,886,438.70 = 7,851,750.60/x
  3. Step 3: Cross multiply
    13,249,849.80x = 19,886,438.70 × 7,851,750.60
  4. Step 4: Simplify right side
    13,249,849.80x = 156,143,356,994,588.22
  5. Step 5: Solve for x
    x = 156,143,356,994,588.22/13,249,849.80
  6. Step 6: Final answer
    x = 11,784,537.89

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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.