Home / 103,257,533.43-142,489,987.11-56,838,720.87

Finding the Fourth Proportional to 103,257,533.43, 142,489,987.11 and 56,838,720.87

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Solution

The fourth proportional to 103,257,533.43, 142,489,987.11 and 56,838,720.87 is: 78,434,457.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,257,533.43 : 142,489,987.11 = 56,838,720.87 : x
  2. Step 2: Convert to fraction form
    103,257,533.43/142,489,987.11 = 56,838,720.87/x
  3. Step 3: Cross multiply
    103,257,533.43x = 142,489,987.11 × 56,838,720.87
  4. Step 4: Simplify right side
    103,257,533.43x = 8,098,948,604,115,188
  5. Step 5: Solve for x
    x = 8,098,948,604,115,188/103,257,533.43
  6. Step 6: Final answer
    x = 78,434,457.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.