Home / 255,997,116.77-383,849,004.76-78,688,082.86

Finding the Fourth Proportional to 255,997,116.77, 383,849,004.76 and 78,688,082.86

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Solution

The fourth proportional to 255,997,116.77, 383,849,004.76 and 78,688,082.86 is: 117,987,040.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,997,116.77 : 383,849,004.76 = 78,688,082.86 : x
  2. Step 2: Convert to fraction form
    255,997,116.77/383,849,004.76 = 78,688,082.86/x
  3. Step 3: Cross multiply
    255,997,116.77x = 383,849,004.76 × 78,688,082.86
  4. Step 4: Simplify right side
    255,997,116.77x = 30,204,342,292,283,412
  5. Step 5: Solve for x
    x = 30,204,342,292,283,412/255,997,116.77
  6. Step 6: Final answer
    x = 117,987,040.92

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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.