Home / 318,901,497.60-478,352,246.40-76,564,401.60

Finding the Fourth Proportional to 318,901,497.60, 478,352,246.40 and 76,564,401.60

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Solution

The fourth proportional to 318,901,497.60, 478,352,246.40 and 76,564,401.60 is: 114,846,602.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,901,497.60 : 478,352,246.40 = 76,564,401.60 : x
  2. Step 2: Convert to fraction form
    318,901,497.60/478,352,246.40 = 76,564,401.60/x
  3. Step 3: Cross multiply
    318,901,497.60x = 478,352,246.40 × 76,564,401.60
  4. Step 4: Simplify right side
    318,901,497.60x = 36,624,753,499,631,752
  5. Step 5: Solve for x
    x = 36,624,753,499,631,752/318,901,497.60
  6. Step 6: Final answer
    x = 114,846,602.40

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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.