Home / 76,896,004.80-115,344,007.20-40,454,558.40

Finding the Fourth Proportional to 76,896,004.80, 115,344,007.20 and 40,454,558.40

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Solution

The fourth proportional to 76,896,004.80, 115,344,007.20 and 40,454,558.40 is: 60,681,837.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,896,004.80 : 115,344,007.20 = 40,454,558.40 : x
  2. Step 2: Convert to fraction form
    76,896,004.80/115,344,007.20 = 40,454,558.40/x
  3. Step 3: Cross multiply
    76,896,004.80x = 115,344,007.20 × 40,454,558.40
  4. Step 4: Simplify right side
    76,896,004.80x = 4,666,190,875,362,420
  5. Step 5: Solve for x
    x = 4,666,190,875,362,420/76,896,004.80
  6. Step 6: Final answer
    x = 60,681,837.60

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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.