Home / 103,257,533.20-142,489,986.88-56,838,720.64

Finding the Fourth Proportional to 103,257,533.20, 142,489,986.88 and 56,838,720.64

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Solution

The fourth proportional to 103,257,533.20, 142,489,986.88 and 56,838,720.64 is: 78,434,457.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,257,533.20 : 142,489,986.88 = 56,838,720.64 : x
  2. Step 2: Convert to fraction form
    103,257,533.20/142,489,986.88 = 56,838,720.64/x
  3. Step 3: Cross multiply
    103,257,533.20x = 142,489,986.88 × 56,838,720.64
  4. Step 4: Simplify right side
    103,257,533.20x = 8,098,948,558,269,585
  5. Step 5: Solve for x
    x = 8,098,948,558,269,585/103,257,533.20
  6. Step 6: Final answer
    x = 78,434,457.10

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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.