Home / 166,061,981.40-249,092,972.10-79,779,582.60

Finding the Fourth Proportional to 166,061,981.40, 249,092,972.10 and 79,779,582.60

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Solution

The fourth proportional to 166,061,981.40, 249,092,972.10 and 79,779,582.60 is: 119,669,373.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,061,981.40 : 249,092,972.10 = 79,779,582.60 : x
  2. Step 2: Convert to fraction form
    166,061,981.40/249,092,972.10 = 79,779,582.60/x
  3. Step 3: Cross multiply
    166,061,981.40x = 249,092,972.10 × 79,779,582.60
  4. Step 4: Simplify right side
    166,061,981.40x = 19,872,533,342,731,444
  5. Step 5: Solve for x
    x = 19,872,533,342,731,444/166,061,981.40
  6. Step 6: Final answer
    x = 119,669,373.90

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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.