Home / 93,312,085.80-139,968,128.70-66,102,306.60

Finding the Fourth Proportional to 93,312,085.80, 139,968,128.70 and 66,102,306.60

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Solution

The fourth proportional to 93,312,085.80, 139,968,128.70 and 66,102,306.60 is: 99,153,459.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,312,085.80 : 139,968,128.70 = 66,102,306.60 : x
  2. Step 2: Convert to fraction form
    93,312,085.80/139,968,128.70 = 66,102,306.60/x
  3. Step 3: Cross multiply
    93,312,085.80x = 139,968,128.70 × 66,102,306.60
  4. Step 4: Simplify right side
    93,312,085.80x = 9,252,216,157,555,658
  5. Step 5: Solve for x
    x = 9,252,216,157,555,658/93,312,085.80
  6. Step 6: Final answer
    x = 99,153,459.90

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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.