Home / 166,061,570.40-249,092,355.60-79,779,171.60

Finding the Fourth Proportional to 166,061,570.40, 249,092,355.60 and 79,779,171.60

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Solution

The fourth proportional to 166,061,570.40, 249,092,355.60 and 79,779,171.60 is: 119,668,757.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,061,570.40 : 249,092,355.60 = 79,779,171.60 : x
  2. Step 2: Convert to fraction form
    166,061,570.40/249,092,355.60 = 79,779,171.60/x
  3. Step 3: Cross multiply
    166,061,570.40x = 249,092,355.60 × 79,779,171.60
  4. Step 4: Simplify right side
    166,061,570.40x = 19,872,381,781,660,620
  5. Step 5: Solve for x
    x = 19,872,381,781,660,620/166,061,570.40
  6. Step 6: Final answer
    x = 119,668,757.40

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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.