Home / 112,117,967.85-168,176,951.78-66,012,508.65

Finding the Fourth Proportional to 112,117,967.85, 168,176,951.78 and 66,012,508.65

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Solution

The fourth proportional to 112,117,967.85, 168,176,951.78 and 66,012,508.65 is: 99,018,762.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,117,967.85 : 168,176,951.78 = 66,012,508.65 : x
  2. Step 2: Convert to fraction form
    112,117,967.85/168,176,951.78 = 66,012,508.65/x
  3. Step 3: Cross multiply
    112,117,967.85x = 168,176,951.78 × 66,012,508.65
  4. Step 4: Simplify right side
    112,117,967.85x = 11,101,782,483,777,820
  5. Step 5: Solve for x
    x = 11,101,782,483,777,820/112,117,967.85
  6. Step 6: Final answer
    x = 99,018,762.98

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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.