Home / 93,312,441.90-139,968,662.85-86,509,997.10

Finding the Fourth Proportional to 93,312,441.90, 139,968,662.85 and 86,509,997.10

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Solution

The fourth proportional to 93,312,441.90, 139,968,662.85 and 86,509,997.10 is: 129,764,995.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,312,441.90 : 139,968,662.85 = 86,509,997.10 : x
  2. Step 2: Convert to fraction form
    93,312,441.90/139,968,662.85 = 86,509,997.10/x
  3. Step 3: Cross multiply
    93,312,441.90x = 139,968,662.85 × 86,509,997.10
  4. Step 4: Simplify right side
    93,312,441.90x = 12,108,688,617,244,376
  5. Step 5: Solve for x
    x = 12,108,688,617,244,376/93,312,441.90
  6. Step 6: Final answer
    x = 129,764,995.65

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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.