Home / 159,457,870.80-239,186,806.20-78,836,302.80

Finding the Fourth Proportional to 159,457,870.80, 239,186,806.20 and 78,836,302.80

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Solution

The fourth proportional to 159,457,870.80, 239,186,806.20 and 78,836,302.80 is: 118,254,454.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,457,870.80 : 239,186,806.20 = 78,836,302.80 : x
  2. Step 2: Convert to fraction form
    159,457,870.80/239,186,806.20 = 78,836,302.80/x
  3. Step 3: Cross multiply
    159,457,870.80x = 239,186,806.20 × 78,836,302.80
  4. Step 4: Simplify right side
    159,457,870.80x = 18,856,603,479,348,116
  5. Step 5: Solve for x
    x = 18,856,603,479,348,116/159,457,870.80
  6. Step 6: Final answer
    x = 118,254,454.20

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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.