Home / 139,824,153.36-192,980,060.16-84,125,870.64

Finding the Fourth Proportional to 139,824,153.36, 192,980,060.16 and 84,125,870.64

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Solution

The fourth proportional to 139,824,153.36, 192,980,060.16 and 84,125,870.64 is: 116,107,376.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,824,153.36 : 192,980,060.16 = 84,125,870.64 : x
  2. Step 2: Convert to fraction form
    139,824,153.36/192,980,060.16 = 84,125,870.64/x
  3. Step 3: Cross multiply
    139,824,153.36x = 192,980,060.16 × 84,125,870.64
  4. Step 4: Simplify right side
    139,824,153.36x = 16,234,615,577,119,578
  5. Step 5: Solve for x
    x = 16,234,615,577,119,578/139,824,153.36
  6. Step 6: Final answer
    x = 116,107,376.21

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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.