Home / 93,421,581.60-140,132,372.40-86,619,136.80

Finding the Fourth Proportional to 93,421,581.60, 140,132,372.40 and 86,619,136.80

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Solution

The fourth proportional to 93,421,581.60, 140,132,372.40 and 86,619,136.80 is: 129,928,705.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,421,581.60 : 140,132,372.40 = 86,619,136.80 : x
  2. Step 2: Convert to fraction form
    93,421,581.60/140,132,372.40 = 86,619,136.80/x
  3. Step 3: Cross multiply
    93,421,581.60x = 140,132,372.40 × 86,619,136.80
  4. Step 4: Simplify right side
    93,421,581.60x = 12,138,145,135,024,144
  5. Step 5: Solve for x
    x = 12,138,145,135,024,144/93,421,581.60
  6. Step 6: Final answer
    x = 129,928,705.20

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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.