Home / 86,943,938.20-130,415,907.30-56,332,936.60

Finding the Fourth Proportional to 86,943,938.20, 130,415,907.30 and 56,332,936.60

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Solution

The fourth proportional to 86,943,938.20, 130,415,907.30 and 56,332,936.60 is: 84,499,404.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,943,938.20 : 130,415,907.30 = 56,332,936.60 : x
  2. Step 2: Convert to fraction form
    86,943,938.20/130,415,907.30 = 56,332,936.60/x
  3. Step 3: Cross multiply
    86,943,938.20x = 130,415,907.30 × 56,332,936.60
  4. Step 4: Simplify right side
    86,943,938.20x = 7,346,711,037,562,377
  5. Step 5: Solve for x
    x = 7,346,711,037,562,377/86,943,938.20
  6. Step 6: Final answer
    x = 84,499,404.90

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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.