Home / 78,807,981.20-118,286,621.40-48,574,893.20

Finding the Fourth Proportional to 78,807,981.20, 118,286,621.40 and 48,574,893.20

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Solution

The fourth proportional to 78,807,981.20, 118,286,621.40 and 48,574,893.20 is: 72,908,351.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,807,981.20 : 118,286,621.40 = 48,574,893.20 : x
  2. Step 2: Convert to fraction form
    78,807,981.20/118,286,621.40 = 48,574,893.20/x
  3. Step 3: Cross multiply
    78,807,981.20x = 118,286,621.40 × 48,574,893.20
  4. Step 4: Simplify right side
    78,807,981.20x = 5,745,760,001,493,835
  5. Step 5: Solve for x
    x = 5,745,760,001,493,835/78,807,981.20
  6. Step 6: Final answer
    x = 72,908,351.59

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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.