Home / 78,393,303.79-108,177,143.59-43,113,593

Finding the Fourth Proportional to 78,393,303.79, 108,177,143.59 and 43,113,593

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Solution

The fourth proportional to 78,393,303.79, 108,177,143.59 and 43,113,593 is: 59,493,669.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,393,303.79 : 108,177,143.59 = 43,113,593 : x
  2. Step 2: Convert to fraction form
    78,393,303.79/108,177,143.59 = 43,113,593/x
  3. Step 3: Cross multiply
    78,393,303.79x = 108,177,143.59 × 43,113,593
  4. Step 4: Simplify right side
    78,393,303.79x = 4,663,905,340,641,819
  5. Step 5: Solve for x
    x = 4,663,905,340,641,819/78,393,303.79
  6. Step 6: Final answer
    x = 59,493,669.93

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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.