Home / 113,484,530.70-170,226,796.05-78,847,116.30

Finding the Fourth Proportional to 113,484,530.70, 170,226,796.05 and 78,847,116.30

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Solution

The fourth proportional to 113,484,530.70, 170,226,796.05 and 78,847,116.30 is: 118,270,674.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,484,530.70 : 170,226,796.05 = 78,847,116.30 : x
  2. Step 2: Convert to fraction form
    113,484,530.70/170,226,796.05 = 78,847,116.30/x
  3. Step 3: Cross multiply
    113,484,530.70x = 170,226,796.05 × 78,847,116.30
  4. Step 4: Simplify right side
    113,484,530.70x = 13,421,891,985,530,732
  5. Step 5: Solve for x
    x = 13,421,891,985,530,732/113,484,530.70
  6. Step 6: Final answer
    x = 118,270,674.45

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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.