Home / 78,237,422.10-107,962,241.58-43,427,372.40

Finding the Fourth Proportional to 78,237,422.10, 107,962,241.58 and 43,427,372.40

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Solution

The fourth proportional to 78,237,422.10, 107,962,241.58 and 43,427,372.40 is: 59,926,776.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,237,422.10 : 107,962,241.58 = 43,427,372.40 : x
  2. Step 2: Convert to fraction form
    78,237,422.10/107,962,241.58 = 43,427,372.40/x
  3. Step 3: Cross multiply
    78,237,422.10x = 107,962,241.58 × 43,427,372.40
  4. Step 4: Simplify right side
    78,237,422.10x = 4,688,516,470,233,424
  5. Step 5: Solve for x
    x = 4,688,516,470,233,424/78,237,422.10
  6. Step 6: Final answer
    x = 59,926,776.02

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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.