Home / 78,328,082.16-108,059,271.48-48,939,394.86

Finding the Fourth Proportional to 78,328,082.16, 108,059,271.48 and 48,939,394.86

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Solution

The fourth proportional to 78,328,082.16, 108,059,271.48 and 48,939,394.86 is: 67,515,445.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,328,082.16 : 108,059,271.48 = 48,939,394.86 : x
  2. Step 2: Convert to fraction form
    78,328,082.16/108,059,271.48 = 48,939,394.86/x
  3. Step 3: Cross multiply
    78,328,082.16x = 108,059,271.48 × 48,939,394.86
  4. Step 4: Simplify right side
    78,328,082.16x = 5,288,355,355,243,657
  5. Step 5: Solve for x
    x = 5,288,355,355,243,657/78,328,082.16
  6. Step 6: Final answer
    x = 67,515,445.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.