Home / 78,868,350.20-118,103,459.70-51,795,428.60

Finding the Fourth Proportional to 78,868,350.20, 118,103,459.70 and 51,795,428.60

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Solution

The fourth proportional to 78,868,350.20, 118,103,459.70 and 51,795,428.60 is: 77,562,410.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,868,350.20 : 118,103,459.70 = 51,795,428.60 : x
  2. Step 2: Convert to fraction form
    78,868,350.20/118,103,459.70 = 51,795,428.60/x
  3. Step 3: Cross multiply
    78,868,350.20x = 118,103,459.70 × 51,795,428.60
  4. Step 4: Simplify right side
    78,868,350.20x = 6,117,219,314,304,328
  5. Step 5: Solve for x
    x = 6,117,219,314,304,328/78,868,350.20
  6. Step 6: Final answer
    x = 77,562,410.00

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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.