Home / 93,312,678.20-139,969,017.30-81,975,270.20

Finding the Fourth Proportional to 93,312,678.20, 139,969,017.30 and 81,975,270.20

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Solution

The fourth proportional to 93,312,678.20, 139,969,017.30 and 81,975,270.20 is: 122,962,905.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,312,678.20 : 139,969,017.30 = 81,975,270.20 : x
  2. Step 2: Convert to fraction form
    93,312,678.20/139,969,017.30 = 81,975,270.20/x
  3. Step 3: Cross multiply
    93,312,678.20x = 139,969,017.30 × 81,975,270.20
  4. Step 4: Simplify right side
    93,312,678.20x = 11,473,998,012,795,976
  5. Step 5: Solve for x
    x = 11,473,998,012,795,976/93,312,678.20
  6. Step 6: Final answer
    x = 122,962,905.30

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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.