Home / 78,551,808.64-117,788,307.84-45,772,994.56

Finding the Fourth Proportional to 78,551,808.64, 117,788,307.84 and 45,772,994.56

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Solution

The fourth proportional to 78,551,808.64, 117,788,307.84 and 45,772,994.56 is: 68,636,530.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,551,808.64 : 117,788,307.84 = 45,772,994.56 : x
  2. Step 2: Convert to fraction form
    78,551,808.64/117,788,307.84 = 45,772,994.56/x
  3. Step 3: Cross multiply
    78,551,808.64x = 117,788,307.84 × 45,772,994.56
  4. Step 4: Simplify right side
    78,551,808.64x = 5,391,523,573,991,926
  5. Step 5: Solve for x
    x = 5,391,523,573,991,926/78,551,808.64
  6. Step 6: Final answer
    x = 68,636,530.05

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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.