Home / 113,484,521.70-170,226,782.55-78,847,107.30

Finding the Fourth Proportional to 113,484,521.70, 170,226,782.55 and 78,847,107.30

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Solution

The fourth proportional to 113,484,521.70, 170,226,782.55 and 78,847,107.30 is: 118,270,660.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,484,521.70 : 170,226,782.55 = 78,847,107.30 : x
  2. Step 2: Convert to fraction form
    113,484,521.70/170,226,782.55 = 78,847,107.30/x
  3. Step 3: Cross multiply
    113,484,521.70x = 170,226,782.55 × 78,847,107.30
  4. Step 4: Simplify right side
    113,484,521.70x = 13,421,889,389,053,618
  5. Step 5: Solve for x
    x = 13,421,889,389,053,618/113,484,521.70
  6. Step 6: Final answer
    x = 118,270,660.95

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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.