Home / 77,677,442.40-116,516,163.60-39,456,847.20

Finding the Fourth Proportional to 77,677,442.40, 116,516,163.60 and 39,456,847.20

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Solution

The fourth proportional to 77,677,442.40, 116,516,163.60 and 39,456,847.20 is: 59,185,270.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,677,442.40 : 116,516,163.60 = 39,456,847.20 : x
  2. Step 2: Convert to fraction form
    77,677,442.40/116,516,163.60 = 39,456,847.20/x
  3. Step 3: Cross multiply
    77,677,442.40x = 116,516,163.60 × 39,456,847.20
  4. Step 4: Simplify right side
    77,677,442.40x = 4,597,360,463,495,402
  5. Step 5: Solve for x
    x = 4,597,360,463,495,402/77,677,442.40
  6. Step 6: Final answer
    x = 59,185,270.80

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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.