Home / 93,312,085.40-139,968,128.10-86,509,640.60

Finding the Fourth Proportional to 93,312,085.40, 139,968,128.10 and 86,509,640.60

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Solution

The fourth proportional to 93,312,085.40, 139,968,128.10 and 86,509,640.60 is: 129,764,460.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,312,085.40 : 139,968,128.10 = 86,509,640.60 : x
  2. Step 2: Convert to fraction form
    93,312,085.40/139,968,128.10 = 86,509,640.60/x
  3. Step 3: Cross multiply
    93,312,085.40x = 139,968,128.10 × 86,509,640.60
  4. Step 4: Simplify right side
    93,312,085.40x = 12,108,592,457,385,760
  5. Step 5: Solve for x
    x = 12,108,592,457,385,760/93,312,085.40
  6. Step 6: Final answer
    x = 129,764,460.90

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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.