Home / 77,354,017.72-116,044,245.78-31,890,959.80

Finding the Fourth Proportional to 77,354,017.72, 116,044,245.78 and 31,890,959.80

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Solution

The fourth proportional to 77,354,017.72, 116,044,245.78 and 31,890,959.80 is: 47,841,889.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,354,017.72 : 116,044,245.78 = 31,890,959.80 : x
  2. Step 2: Convert to fraction form
    77,354,017.72/116,044,245.78 = 31,890,959.80/x
  3. Step 3: Cross multiply
    77,354,017.72x = 116,044,245.78 × 31,890,959.80
  4. Step 4: Simplify right side
    77,354,017.72x = 3,700,762,377,191,300
  5. Step 5: Solve for x
    x = 3,700,762,377,191,300/77,354,017.72
  6. Step 6: Final answer
    x = 47,841,889.62

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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.