Home / 125,205,305.60-187,807,958.40-86,238,214.40

Finding the Fourth Proportional to 125,205,305.60, 187,807,958.40 and 86,238,214.40

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Solution

The fourth proportional to 125,205,305.60, 187,807,958.40 and 86,238,214.40 is: 129,357,321.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,205,305.60 : 187,807,958.40 = 86,238,214.40 : x
  2. Step 2: Convert to fraction form
    125,205,305.60/187,807,958.40 = 86,238,214.40/x
  3. Step 3: Cross multiply
    125,205,305.60x = 187,807,958.40 × 86,238,214.40
  4. Step 4: Simplify right side
    125,205,305.60x = 16,196,222,982,525,482
  5. Step 5: Solve for x
    x = 16,196,222,982,525,482/125,205,305.60
  6. Step 6: Final answer
    x = 129,357,321.60

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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.