Home / 139,385,816.40-192,357,124.90-76,666,765.16

Finding the Fourth Proportional to 139,385,816.40, 192,357,124.90 and 76,666,765.16

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Solution

The fourth proportional to 139,385,816.40, 192,357,124.90 and 76,666,765.16 is: 105,802,720.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,385,816.40 : 192,357,124.90 = 76,666,765.16 : x
  2. Step 2: Convert to fraction form
    139,385,816.40/192,357,124.90 = 76,666,765.16/x
  3. Step 3: Cross multiply
    139,385,816.40x = 192,357,124.90 × 76,666,765.16
  4. Step 4: Simplify right side
    139,385,816.40x = 14,747,398,521,561,088
  5. Step 5: Solve for x
    x = 14,747,398,521,561,088/139,385,816.40
  6. Step 6: Final answer
    x = 105,802,720.12

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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.