Home / 61,152,138.10-91,728,207.15-56,475,457.30

Finding the Fourth Proportional to 61,152,138.10, 91,728,207.15 and 56,475,457.30

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Solution

The fourth proportional to 61,152,138.10, 91,728,207.15 and 56,475,457.30 is: 84,713,185.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,152,138.10 : 91,728,207.15 = 56,475,457.30 : x
  2. Step 2: Convert to fraction form
    61,152,138.10/91,728,207.15 = 56,475,457.30/x
  3. Step 3: Cross multiply
    61,152,138.10x = 91,728,207.15 × 56,475,457.30
  4. Step 4: Simplify right side
    61,152,138.10x = 5,180,392,446,105,380
  5. Step 5: Solve for x
    x = 5,180,392,446,105,380/61,152,138.10
  6. Step 6: Final answer
    x = 84,713,185.95

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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.