Home / 127,872,012.20-191,808,018.30-73,284,492.20

Finding the Fourth Proportional to 127,872,012.20, 191,808,018.30 and 73,284,492.20

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Solution

The fourth proportional to 127,872,012.20, 191,808,018.30 and 73,284,492.20 is: 109,926,738.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,872,012.20 : 191,808,018.30 = 73,284,492.20 : x
  2. Step 2: Convert to fraction form
    127,872,012.20/191,808,018.30 = 73,284,492.20/x
  3. Step 3: Cross multiply
    127,872,012.20x = 191,808,018.30 × 73,284,492.20
  4. Step 4: Simplify right side
    127,872,012.20x = 14,056,553,221,003,808
  5. Step 5: Solve for x
    x = 14,056,553,221,003,808/127,872,012.20
  6. Step 6: Final answer
    x = 109,926,738.30

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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.