Home / 86,938,513.20-130,407,769.80-56,327,511.60

Finding the Fourth Proportional to 86,938,513.20, 130,407,769.80 and 56,327,511.60

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Solution

The fourth proportional to 86,938,513.20, 130,407,769.80 and 56,327,511.60 is: 84,491,267.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,938,513.20 : 130,407,769.80 = 56,327,511.60 : x
  2. Step 2: Convert to fraction form
    86,938,513.20/130,407,769.80 = 56,327,511.60/x
  3. Step 3: Cross multiply
    86,938,513.20x = 130,407,769.80 × 56,327,511.60
  4. Step 4: Simplify right side
    86,938,513.20x = 7,345,545,166,139,630
  5. Step 5: Solve for x
    x = 7,345,545,166,139,630/86,938,513.20
  6. Step 6: Final answer
    x = 84,491,267.40

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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.