Home / 78,254,475.08-117,385,487.55-25,730,983.67

Finding the Fourth Proportional to 78,254,475.08, 117,385,487.55 and 25,730,983.67

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Solution

The fourth proportional to 78,254,475.08, 117,385,487.55 and 25,730,983.67 is: 38,597,716.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,254,475.08 : 117,385,487.55 = 25,730,983.67 : x
  2. Step 2: Convert to fraction form
    78,254,475.08/117,385,487.55 = 25,730,983.67/x
  3. Step 3: Cross multiply
    78,254,475.08x = 117,385,487.55 × 25,730,983.67
  4. Step 4: Simplify right side
    78,254,475.08x = 3,020,444,062,657,110.50
  5. Step 5: Solve for x
    x = 3,020,444,062,657,110.50/78,254,475.08
  6. Step 6: Final answer
    x = 38,597,716.74

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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.