Home / 78,254,452.80-117,381,679.20-49,589,006.40

Finding the Fourth Proportional to 78,254,452.80, 117,381,679.20 and 49,589,006.40

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Solution

The fourth proportional to 78,254,452.80, 117,381,679.20 and 49,589,006.40 is: 74,383,509.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,254,452.80 : 117,381,679.20 = 49,589,006.40 : x
  2. Step 2: Convert to fraction form
    78,254,452.80/117,381,679.20 = 49,589,006.40/x
  3. Step 3: Cross multiply
    78,254,452.80x = 117,381,679.20 × 49,589,006.40
  4. Step 4: Simplify right side
    78,254,452.80x = 5,820,840,841,091,547
  5. Step 5: Solve for x
    x = 5,820,840,841,091,547/78,254,452.80
  6. Step 6: Final answer
    x = 74,383,509.60

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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.