Home / 125,963,811.20-189,029,697.60-57,771,401.60

Finding the Fourth Proportional to 125,963,811.20, 189,029,697.60 and 57,771,401.60

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Solution

The fourth proportional to 125,963,811.20, 189,029,697.60 and 57,771,401.60 is: 86,695,618.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,963,811.20 : 189,029,697.60 = 57,771,401.60 : x
  2. Step 2: Convert to fraction form
    125,963,811.20/189,029,697.60 = 57,771,401.60/x
  3. Step 3: Cross multiply
    125,963,811.20x = 189,029,697.60 × 57,771,401.60
  4. Step 4: Simplify right side
    125,963,811.20x = 10,920,510,574,376,156
  5. Step 5: Solve for x
    x = 10,920,510,574,376,156/125,963,811.20
  6. Step 6: Final answer
    x = 86,695,618.93

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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.